From GitHub Advisory Database
Sat, October 24Yesterday
filelock: ReadWriteLock on the hard-link route deletes any directory another user renames onto its .filelock-* link directory name
影響: pip:filelock >= 4.1.0, <= 4.2.0 → 4.2.1 ReadWriteLock and AsyncReadWriteLock (the SQLite-backed reader/writer lock) remove their private .filelock- link directories with shutil.rmtree (a recursive delete) on a remembered path. They do not check that the path still names the directory they created. This happens on the hard-link route (a hard link is a second name for the same file). That route is every connection on macOS since 4.1.1 and any POSIX process without a usable /proc/self/fd (a Linux path that names the process's own open f…
filelock: ReadWriteLock on Windows acts on SQLite side files another local user places beside its database
影響: pip:filelock >= 3.20.4, <= 4.2.0 → 4.2.1 On Windows, ReadWriteLock and AsyncReadWriteLock (the SQLite-backed reader/writer lock) connect SQLite to the lock database by its path, in every directory. SQLite derives three side files from that path: -journal, the rollback journal (pages saved to undo an interrupted write); -wal, the write-ahead log (changes kept outside the main file); and -shm, the shared-memory index of the WAL. SQLite acts on whichever of these it finds beside the database before the lock runs any statement. Another lo…
filelock: On Windows an oplock on a soft lock's marker holds SoftFileLock.acquire() past its timeout and blocks the stale break
影響: pip:filelock >= 3.22.0, <= 4.2.0 → 4.2.1 On Windows the soft locks (SoftFileLock, MarkerSoftFileLock, SoftFileLease, their async forms, and a FileLock that fell back to a soft lock) read their marker by path. The marker is the lock file whose presence says a process holds the lock. Each acquire() attempt that finds a marker opens it with os.open to read the holder's process id, and the lock renames and deletes a marker it judges stale, by path. On Windows each of these calls waits for an oplock. An oplock (opportunistic lock) is a req…
virtualenv: Temporary app-data can leave dangling seed package links
影響: pip:virtualenv >= 21.14.8, < 21.14.10 → 21.14.10 The app-data seeder can leave an environment linked to temporary package files that virtualenv deletes when creation finishes. The environment-variable and configuration-file forms of symlink_app_data can enable this state even though the command-line flag is disabled for temporary app-data. The resulting environment depends on a cache pathname that its owner no longer controls. Anthropic's OSS Scanner reported this as ANT-2026-ZOE2GEPC in virtualenv-20261015-005, received on 15 October 2026. T…
virtualenv: Pip seeding with download omits wheel digest verification
影響: pip:virtualenv < 21.14.9 → 21.14.9 The pip seeder acquires bundled wheels with download=False and lets pip access the index when --download is selected. Index candidates on that path do not pass through virtualenv's wheel digest verification. Anthropic's OSS Scanner reported this as ANT-2026-74ALJBUF in virtualenv-20261015-005, received on 15 October 2026. Affected area Wheel selection by the pip seeder when downloads are enabled. Attacker-controlled input The pip seeder and download option must be selected. The finding concerns…
virtualenv: Downloaded wheel selection and caching precede verification
影響: pip:virtualenv < 21.14.9 → 21.14.9 Wheel downloads go directly into the reusable wheelhouse, while the verification target is selected from pip's textual output. A verification failure does not remove the downloaded file from that cache. Anthropic's OSS Scanner reported this as ANT-2026-ST00DRO3 in virtualenv-20261015-005, received on 15 October 2026. Affected area Download selection and promotion into the reusable wheel cache. Attacker-controlled input A download must fail verification, or the archive selected from pip output m…
virtualenv: Xonsh activation literals depend on the script decoding codec
影響: pip:virtualenv < 21.14.9 → 21.14.9 Caller-supplied prompt text can become executable syntax in the xonsh activation script. An attacker must influence the value passed to virtualenv, and a user must subsequently activate the environment. Affected area Xonsh reads a UTF-8 activation script using a legacy multibyte encoding such as GBK. Printable non-ASCII bytes can change how the reader recognizes an adjacent quote. The report concerns POSIX activation. It does not establish exposure through unrelated activators. Attacker-control…
virtualenv: Seeded files retain permissions from an older cache
影響: pip:virtualenv < 21.14.9 → 21.14.9 The app-data copy seeder uses shutil.copy, which preserves cached file modes independently of the current umask. A cache populated under permissive permissions can therefore produce files with wider access in later environments. Anthropic's OSS Scanner reported this as ANT-2026-487MH6OW in virtualenv-20261015-005, received on 15 October 2026. Affected area Permissions of files copied from app-data into a new environment. Attacker-controlled input The cache must contain files created with broade…
virtualenv: Bash prompt values can change meaning under older compatibility modes
影響: pip:virtualenv < 21.14.9 → 21.14.9 Caller-supplied prompt text can become executable syntax in the bash activation prompt. An attacker must influence the value passed to virtualenv, and a user must subsequently activate the environment and draw the prompt. Affected area Bash runs with compatibility level 4.2 and draws the environment prompt. Its replacement-string behavior differs from newer compatibility modes, leaving prompt text subject to a second interpretation. The report concerns POSIX activation. It does not establish ex…
virtualenv: Venv configuration readback can reinterpret path boundaries
影響: pip:virtualenv < 21.14.9 → 21.14.9 The venv creator reads the standard library's generated pyvenv.cfg with splitlines() and merges all resulting keys over virtualenv's configuration. Line-boundary characters from destination data can therefore become configuration structure before output sanitization. Anthropic's OSS Scanner reported this as ANT-2026-6ZQHJ6VI in virtualenv-20261015-005, received on 15 October 2026. Affected area Configuration readback by the stdlib venv creator. Attacker-controlled input An untrusted caller must…
virtualenv: Seed replacement does not contain metadata deletion paths
影響: pip:virtualenv < 21.14.9 → 21.14.9 The app-data seeder joins paths from existing distribution metadata to site-packages and deletes the resulting paths without checking containment within the environment. Anthropic's OSS Scanner reported this as ANT-2026-SXOEHWP7 in virtualenv-20261015-005, received on 15 October 2026. Affected area Removal of a previously installed seed package. Attacker-controlled input An environment being reused must contain distribution metadata influenced by another account. The invoking user must have del…
MLflow: SSRF on unauthenticated MLflow servers via third-party scorer kwargs in the scorer invoke, register, and GenAI evaluate endpoints
影響: pip:mlflow >= 3.12.0rc0, < 3.17.0 → 3.17.0 MLflow's tracking server exposes POST /ajax-api/3.0/mlflow/scorer/invoke with no authentication, and the handler reflectively instantiates an attacker-named class from attacker-supplied JSON with unconstrained constructor kwargs. With the optional trulens + trulens-providers-litellm packages installed, an unauthenticated attacker can force the server to make an outbound HTTP request to an arbitrary host of their choosing, carrying attacker-controlled headers (SSRF). Details Scorer.model_validat…
LangGraph: Namespace labels containing `.` reach other namespaces in Postgres and SQLite stores
影響: pip:langgraph-checkpoint-postgres < 3.1.3 → 3.1.3, pip:langgraph-checkpoint-sqlite < 3.1.2 → 3.1.2 The Postgres and SQLite stores save a namespace as its labels joined with ., so ("tenant", "bob") and ("tenant.bob",) map to the same stored namespace. put rejected labels containing ., but get, search, delete, list_namespaces, their async versions, and ops passed directly to batch/abatch did not. A caller that could pass such a label could read, overwrite or delete items in another namespace. Details BaseStore checked namespace labels only in put/aput. The other methods passed the namespace on…
filelock: SoftFileLock evicts a fresh lock file whose watched age another local user's pre-dated file passed on through inode reuse
影響: pip:filelock >= 4.1.0, <= 4.2.0 → 4.2.1 SoftFileLock and MarkerSoftFileLock evict an unparsable marker (the lock file at , whose presence says a process holds the lock) once a waiting contender has watched it unchanged for two seconds. SoftFileLease expires a lease the same way. The watch tells two looks apart by the marker's modification time (mtime) and inode number (the kernel's identity for a file, independent of its name) alone. Another local user (the other user below) who can create files in the lock's directory, a sticky /tmp…
filelock: SoftFileLock stale-break restore follows a swapped-in symbolic link and hard-links a file of the user running the lock into the lock directory
影響: pip:filelock >= 4.1.0, <= 4.2.0 → 4.2.1 When a soft-lock stale break finds that the marker (the lock file at ) it renamed aside was a live one recreated by a successor, the restore branch of break_lock_file() checks the break name with lstat (a check that reads a name without following a symbolic link) and then calls os.link(break_path, lock_file) by name. On CPython 3.12 and later on Linux (and on macOS) that call follows a symbolic link (a file that redirects to another path). A local user (the other user below) who can write a sha…
filelock ReadWriteLock: SQLite reopens the lock database by name, so a planted symlink or journal file makes the lock user's process overwrite or unlink its own files
影響: pip:filelock >= 3.20.4, <= 4.2.0 → 4.2.1 ReadWriteLock and AsyncReadWriteLock (the SQLite-backed reader/writer lock) hand SQLite a name they do not control. On Linux the lock validates its database through a descriptor (the number the kernel gives a process for an open file). It then connects SQLite to /proc/self/fd/ , a Linux path that names the process's own open file n. SQLite turns that path back into a plain path and reopens it by name, following symlinks (a symlink is a file that points at another path). On every POSIX route SQL…
Pillow: Heap buffer overflow in FlashPix (FPX) JPEG decoding leads to code execution
影響: pip:pillow <= 12.3.0 → 13.0.0 Credits Researcher: Alex Bouffard (mixbo@pebwalker.com) Summary A heap buffer overflow in Pillow's FlashPix (FPX) JPEG-tile decoder lets an attacker achieve arbitrary code execution by getting an application to open a single crafted file with Image.open(). The file is recognized by content (the OLE2 magic), not by extension, so any service that opens or thumbnails untrusted uploads with the optional olefile dependency installed is reachable with no user interaction. In the PoC below, opening on…
Pillow: Arrow export leaks stale heap memory when PILLOW_ALIGNMENT > 1
影響: pip:Pillow >= 11.2.1, < 13.0.0 → 13.0.0 When [PILLOW_ALIGNMENT](https://pillow.readthedocs.io/en/stable/reference/block_allocator.html#memory-pools) is set above 1, exporting an image to Arrow returns uninitialized heap memory mixed in with the pixel data. That memory can include pixels from images the process freed earlier. Details With an alignment above 1, the default allocator pads each row up to aligned_linesize and starts the first row at an aligned offset into the block. It then exports im->blocks[0].ptr as xsize ysize tightly…
setuptools: Windows path escape via namespace_packages.txt during legacy wheel installation Description
影響: pip:setuptools >= 38.2.2, < 84.1.0 → 84.1.0 On Windows, attacker-controlled content in a wheel's .dist-info/namespace_packages.txt can cause setuptools' legacy wheel installation path to create an __init__.py outside the requested destination_eggdir. The attacker can influence the destination path, but not the contents of the created file. Details Tested setuptools commit: 6ead555c5fb29bc57fe6105b1bffc163f56fd558 Relevant source: setuptools/wheel.py SHA-256: 359b7e0d5dd8c3135653abe08a8ed5dc0352eadfd7df22cb5e2b5303b7c3cafd The relevant ca…
FastMCP: Post-transform component authorization is skipped on direct calls
影響: pip:fastmcp >= 3.0.0, < 3.4.10 → 3.4.10, pip:fastmcp >= 4.0.0, < 4.1.2 → 4.1.2, pip:fastmcp-slim >= 3.0.0, < 3.4.10 → 3.4.10, pip:fastmcp-slim >= 4.0.0, < 4.1.2 → 4.1.2 Maintainer assessment and remediation This report is accepted as a FastMCP authorization vulnerability. In supported configurations, a server transform can change the metadata used by a component's authorization policy. Direct lookups previously checked the original component but returned the transformed component without rechecking its policy. A client that knows the component identifier can invoke a tool or retrieve a resource or prompt that the configured policy denies. The fixes authorize t…
FastMCP MCP client wrappers construct M2M OAuth providers without issuer binding — client secret redirectable to attacker-advertised authorization server
影響: pip:fastmcp >= 4.0.0a1, < 4.1.2 → 4.1.2, pip:fastmcp-slim >= 4.0.0a1, < 4.1.2 → 4.1.2 Maintainer assessment and remediation This report is accepted as a FastMCP credential-binding vulnerability. Affected versions of the OAuth client credentials providers do not expose the authorization-server issuer that owns pre-registered credentials. An untrusted or compromised MCP server can therefore advertise a different authorization server and receive the client secret or a signed assertion. Signing keys themselves remain local; assertion replayability depends on the assertion source and…
vLLM : DoS via unvalidated mm_processor_kwargs in multimodal image processors (Isaac, InternVL, H2OVL, etc.)
影響: pip:vllm >= 0.7.3, < 0.31.0 → 0.31.0 API clients can supply arbitrary mm_processor_kwargs per request. vLLM forwards these values through the multimodal rendering and processing pipeline to Hugging Face and custom image/video processor constructors and calls. Resource-sensitive values such as image size, patch size, patch count, crop count, or frame count can therefore be controlled by a remote client. For processors that upscale inputs, a single request can force an allocation large enough to terminate the API server or worker wi…
pypdf: Possible long runtimes for repeated references to the same missing object
影響: pip:pypdf < 6.21.2 → 6.21.2 An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires loading relevant parts of a file (like their pages) where the same, but non-existent indirect object is referenced multiple times. Patches This has been fixed in [pypdf==6.21.2](https://github.com/py-pdf/pypdf/releases/tag/6.21.2). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4240](https://github.com/py-pdf/pypdf/pull/4240).
pypdf: Possible long runtimes for repeated malformed cross-reference entries (Follow-up)
影響: pip:pypdf < 6.21.2 → 6.21.2 An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with repeated malformed cross-reference streams. Patches This has been fixed in [pypdf==6.21.2](https://github.com/py-pdf/pypdf/releases/tag/6.21.2). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4240](https://github.com/py-pdf/pypdf/pull/4240). Notes This is a follow-up to https://github.com/py-pdf/pypdf/security/advisories/GHSA-55h5-xmcq-…
pypdf: Possible long runtimes for large xref table header limits
影響: pip:pypdf < 6.21.2 → 6.21.2 An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires opening a file with large/wrong upper limits in the xref table. Patches This has been fixed in [pypdf==6.21.2](https://github.com/py-pdf/pypdf/releases/tag/6.21.2). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4239](https://github.com/py-pdf/pypdf/pull/4239).
Strands Agents SDK: Exposure of data element to wrong session in the A2A Server
影響: pip:strands-agents < 1.43.0 → 1.43.0, npm:@strands-agents/sdk < 1.5.0 → 1.5.0 Strands Agents SDK is an open-source SDK, available for Python (strands-agents) and TypeScript (@strands-agents/sdk), for building and running AI agents. An issue exists where, under certain circumstances, the Agent2Agent (A2A) server shares conversation history across callers with different context\_id values, allowing one caller to read and influence another caller's session. Impact The A2A server did not properly isolate conversation state between callers. In multi-tenant deployments, an aut…
virtualenv: Bash activator leaves the --prompt value unescaped in PS1 when promptvars is off, so prompt expansion later executes it (regression in 21.14.9)
影響: pip:virtualenv >= 21.14.9, < 21.14.13 → 21.14.13 The bash activator puts the caller-supplied prompt value into PS1 unescaped whenever promptvars is off at activation time, and assumes prompt expansion can never run afterwards. promptvars and posix mode are runtime shell state, not a property of the activation moment: re-enabling prompt expansion in the same shell (shopt -s promptvars, set -o posix) or starting an interactive child bash that inherits the exported PS1 makes bash expand the stored value and run the command substitution in it. An…
Mistune: Path Traversal and XSS in Include directive
影響: pip:mistune <= 3.2.0 → 3.3.0 The Include directive in src/mistune/directives/include.py does not validate that the resolved file path stays within the source directory, allowing path traversal via ../ sequences to read arbitrary files. Additionally, error messages and included file contents are rendered without HTML escaping, leading to XSS even when escape=True. Affected functions: - Path resolution (lines 27-31) - block_error() in html.py (line 140) - render_html_include() (line 72) The Include plugin must be explicitly…
Twisted: Denial of Service in the Twisted IMAP4 Server via a Negative Literal Size in SEARCH
影響: pip:Twisted <= 26.4.0 → 26.10.0rc1 An infinite-loop vulnerability (CWE-835) in the Twisted IMAP4 server lets an authenticated client freeze the whole process with one small command. twisted.mail.imap4.parseNestedParens reads an IMAP literal size with int() and never rejects a negative value. A negative size such as {-100} drives the parser cursor negative, and because a negative Python index wraps around the end of the string instead of raising, the scanning loop never terminates. It runs synchronously on the single-threaded rea…
Twisted: Unauthenticated Remote Denial of Service in the Twisted IRC Server via an Unbounded Line Buffer
影響: pip:Twisted <= 26.4.0 → 26.10.0rc1 An unbounded-buffer vulnerability (CWE-770) in the Twisted words IRC server lets any unauthenticated remote client exhaust server memory. twisted.words.protocols.irc.IRC.dataReceived appends every received byte to a per-connection buffer and only removes data at a line feed, with no maximum length. Because IRC is a plain Protocol and not a LineReceiver, one connection that streams bytes without a line feed grows the buffer without bound and drives the whole single-threaded process to out-of-mem…
Twisted: Unauthenticated Remote Denial of Service in the Twisted conch Telnet Transport via an Unbounded Subnegotiation Buffer
影響: pip:Twisted <= 26.4.0 → 26.10.0rc1 An allocation-without-limits vulnerability (CWE-770) in the Twisted conch telnet transport lets any unauthenticated remote peer exhaust server memory over a single connection. When the peer opens a telnet subnegotiation with IAC SB and then streams bytes without ever sending the IAC SE terminator, every byte is appended to a per-connection buffer that has no maximum length. The buffer persists across reads and is released only on the terminator the attacker withholds, so it grows without bound…
Twisted: Unauthenticated Remote Denial of Service in the Twisted words domish XML Element Stream via an Unbounded Element Tree
影響: pip:Twisted <= 26.4.0 → 26.10.0rc1 An allocation-without-limits vulnerability in the Twisted XML element stream lets any unauthenticated remote peer exhaust server memory over a single stream. When the peer opens a container element and streams child elements without ever closing the container, every element is materialised into an in-memory tree with no limit on depth or child count. An element is released only when its end tag arrives, so a container the attacker never closes retains everything beneath it until the process is…
Twisted: HTTP Request Smuggling in twisted.web via a Bare CR or LF in a Header Value
影響: pip:Twisted <= 26.4.0 → 26.10.0rc1 An incomplete header-value validation (CWE-444) in the Twisted HTTP server lets a bare carriage return or line feed in a header value hide a following header from the parser. twisted.web.http.HTTPChannel.headerReceived rejects a NUL byte in a header value but not a bare CR or LF, even though RFC 9110 section 5.5 requires a recipient to reject all three. Because the channel splits requests only on CRLF, a value carrying a bare LF and a second header arrives as one line, so the second header is f…
vLLM: Forged multimodal UUID + P0/P1 processor-cache eviction drift: unauthenticated remote crash of the whole vLLM engine
影響: pip:vllm < 0.31.0 → 0.31.0 Multimodal content parts (image_url, video_url, input_audio, ...) accept a user-supplied uuid field that vLLM uses verbatim as the item's cache identity (mm_hash). The two frontend/engine processor caches (P0 "sender" cache in the API process, P1 "receiver" cache in the EngineCore process) are independent LRU caches whose evictions are not synchronized, and the P1 hit path performs zero consistency validation — it silently substitutes the cached item's tensor data for whatever the current reque…
Fri, October 23
virtualenv: Generated files can follow existing destination links
影響: pip:virtualenv < 21.14.9 → 21.14.9 Generated activation files and pyvenv.cfg can follow existing links and write outside the requested environment. The template writer tests exists() before unlinking, which misses dangling symlinks; the configuration writer opens the existing path directly. Anthropic's OSS Scanner reported this as ANT-2026-XBEOCBS1 in virtualenv-20261015-005, received on 15 October 2026. Affected area Final file entries written during environment creation and seeding. Attacker-controlled input Another account mu…
Pillow: Bundled libopenjp2 2.5.4 in all wheels since 11.1.0 carries OSV-2025-219 heap-buffer-overflow write reachable from Image.open().load()
影響: pip:pillow >= 11.1.0, < 13.0.0 → 13.0.0 Every Pillow wheel from 11.1.0 onward bundles a libopenjp2 containing a heap-buffer-overflow write that is fixed upstream on master but has never appeared in an OpenJPEG release. See https://osv.dev/vulnerability/OSV-2025-219 Because the wheel bundles its own copy, a patched host OS does not help. It is reachable from Image.open(fp); im.load() with default settings. I am reporting it here rather than only upstream because Pillow is where the vulnerable binary actually reaches users. Note the in…
pypdf: Possible long runtimes/large memory usage when retrieving form fields
影響: pip:pypdf < 6.21.0 → 6.21.0 An attacker who uses this vulnerability can craft a PDF which leads to large memory usage and/or long runtimes. This requires retrieving the form fields of a document. Patches This has been fixed in [pypdf==6.21.0](https://github.com/py-pdf/pypdf/releases/tag/6.21.0). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4219](https://github.com/py-pdf/pypdf/pull/4219).
pypdf: Possible large memory usage when parsing arrays and dictionaries
影響: pip:pypdf < 6.21.0 → 6.21.0 An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing arrays and/or dictionaries with lots of elements. Patches This has been fixed in [pypdf==6.21.0](https://github.com/py-pdf/pypdf/releases/tag/6.21.0). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4218](https://github.com/py-pdf/pypdf/pull/4218).
pypdf: Possible large memory usage when parsing content streams
影響: pip:pypdf < 6.21.0 → 6.21.0 An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing content streams with many small operations. Patches This has been fixed in [pypdf==6.21.0](https://github.com/py-pdf/pypdf/releases/tag/6.21.0). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4218](https://github.com/py-pdf/pypdf/pull/4218).
GitPython validates a submodule's ".git" path only after cloning into it (RCE)
影響: pip:Gitpython <= 3.2.0 → 3.2.1 create_submodule(name, path, url) clones a submodule into the repo's own .git directory before it rejects the path. A path of ".git/hooks" is accepted by the pre-clone check, so the submodule is cloned straight into the live hooks directory, and a file named post-checkout in the submodule becomes an executable .git/hooks/post-checkout. On 3.2.0+ the later index check does raise ValueError, but only after the clone already wrote to disk, and it does not remove the planted hook; on 3.1.x there is…
GraphQL-core: Denial of service via comment tokens bypassing the parser's max_tokens limit
影響: pip:graphql-core >= 3.2.3, < 3.2.12 → 3.2.12, pip:graphql-core >= 3.3.0a3, < 3.3.0rc1 → 3.3.0rc1 The parser's max_tokens limit — the documented defence against oversized GraphQL documents — did not count comment tokens. A document padded with comments could therefore pass a max_tokens check of any size while still allocating one Token object per comment, all of which stay reachable for the lifetime of the parsed document. A 38 MB comment-padded payload allocated roughly 92 MB of additional resident memory with max_tokens=5 in force. Details Lexer.lookahead() reads tokens one at a time and…
GraphQL-core: Denial of service via quadratic complexity in the OverlappingFieldsCanBeMerged validation rule
影響: pip:graphql-core >= 3.0.0, < 3.2.12 → 3.2.12, pip:graphql-core >= 3.3.0a1, < 3.3.0rc1 → 3.3.0rc1 The OverlappingFieldsCanBeMerged validation rule can be driven into quadratic — and in the worst case O(n²·m²) — running time by a small, highly compressible query. A single 364 KB document can occupy one CPU core for over five minutes during validation, before any resolver runs. Because the rule is part of specified_rules and therefore enabled by default, every GraphQL-core based server is affected at default settings. Details OverlappingFieldsCanBeMerged compares every pair of fields that sha…
nbconvert: Arbitrary file write through path traversal in cell output filenames when exporting to md, latex, rst and asciidoc
影響: pip:nbconvert >= 5.4.0, <= 7.17.1 → 7.17.2 nbconvert <= v7.17.1 has an arbitrary file write vulnerability due to a path traversal in ipynb cell output metadata, more specifically on the filename attribute. Vulnerable converters : --to markdown, --to latex, --to rst, --to asciidoc. In ExtractOutputPreprocessor, extractoutput.py:116-119 joins attacker-controlled path to output_files_dir with no canonicalization check, enabling arbitrary file write. This is a sibling vulnerability of https://github.com/advisories/GHSA-4c99-qj7h-p3vg. Impac…
OpenTelemetry Python: Unbounded tracestate parsing in opentelemetry-api
影響: pip:opentelemetry-api <= 1.45.0 → 1.45.1 TraceState.from_header splits the inbound W3C tracestate header with a regular expression that starts with an unbounded optional-whitespace run, and no length limit is applied first. A run of spaces or tabs that is not followed by a comma costs O(N²) CPU. A single unauthenticated request with a ~100 KB tracestate keeps the handling worker busy for ~6 s (spaces) to ~12 s (tabs); under an asyncio server it blocks every other connection for that time. Affected component / version - Package: opente…
Black: GitHub Action installs unvalidated required-version from pyproject.toml
影響: pip:black < 26.10.1 → 26.10.1 The GitHub Action bundled with Black can read the version from tool.black.required-version if use_pyproject is set to True. This version is not validated and therefore can be used to execute untrusted code in the context of a victim's repository. Details This is similar to the previous CVE-2026-31900. The value in tool.black.required-version is accepted as the version to be installed by the action without validation. Proof of concept Reproduction requires a victim to use Black's GitHub Action w…
Django REST framework: TokenProxy.delete() reports success and revokes nothing
影響: pip:djangorestframework >= 3.12.0, < 3.18.2 → 3.18.2 Deleting an authentication token through TokenProxy silently deletes nothing. The call raises no exception and reports success, the database row survives, and the token keeps authenticating. Any application, admin integration or operational script that revokes credentials by calling .delete() on a TokenProxy instance believes it has revoked a token that is still live. Details TokenProxy overrides pk to return the user id (rest_framework/authtoken/models.py:49-63): python @property def pk(self):…
Django REST framework: Accept header with many large quoted parameters burns ~19s of CPU per request in content negotiation
影響: pip:djangorestframework < 3.18.2 → 3.18.2 DRF's content negotiation parses each Accept token several times per request and never limits the number of tokens or their total size. Each parse ends up in Django's parse_header_parameters, which takes quadratic time when a quoted parameter value is packed with semicolons. On my machine a single GET with a 780KB Accept header made of 96 such tokens kept one gunicorn worker busy for 18.87 seconds (Django 6.1, djangorestframework 3.18.0, gunicorn 26.0.0, Python 3.13, Docker on macOS). The heade…
Django REST framework: JSONParser applies an attacker-named codec to the request stream
影響: pip:djangorestframework >= 3.6.4, < 3.18.2 → 3.18.2 An unauthenticated attacker can defeat Django's DATA_UPLOAD_MAX_MEMORY_SIZE limit and force a worker process to allocate arbitrary memory, by naming a compression codec in the Content-Type charset parameter. A 108-byte request body produces a 50,331,648-character value inside the view, an amplification factor of 466,033, and grows process peak RSS by about 97 MiB. No application configuration is required beyond DRF's default parser set; the endpoint only has to accept a JSON body. Details JSONP…
Pillow: Heap buffer overflow writing JPEG comment after ICC profile fills buffer
影響: pip:Pillow >= 9.4.0, < 13.0.0 → 13.0.0 ============================================================================ Heap buffer overflow writing JPEG comment after ICC profile fills buffer Location: src/libImaging/JpegEncode.c:330 in ImagingJpegEncode() Commit: a707c6b21c313880d0771e54965d142dd42358b6 ============================================================================ A heap buffer overflow in Pillow's JPEG encoder lets anyone who can supply an image write up to 64 KB of bytes they choose, followed by the rest of the compre…
Pillow: Heap over-read in WMF/EMF rendering via 16-bit dimension truncation (Windows builds)
影響: pip:Pillow < 13.0.0 → 13.0.0 On Windows builds, Pillow stores EMF and WMF image dimensions without a range check and passes them to the native drawwmf handler. That code sizes its allocation from dimensions truncated into 16-bit header fields but copies the result using the full 32-bit dimensions. A crafted metafile that is wide and short passes the decompression-bomb pixel check yet causes a heap over-read. Details The EMF branch computes the size straight from signed 32-bit header fields and stores it with no positivity…