pypdf: Possible infinite loop when hitting EOF in standard xref table

影響: pip:pypdf < 6.20.0 → 6.20.0

An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires an incomplete file which ends inside the xref table. Patches This has been fixed in [pypdf==6.20.0](https://github.com/py-pdf/pypdf/releases/tag/6.20.0). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4170](https://github.com/py-pdf/pypdf/pull/4170). Notes This has been reported through both the secure channel and as a public issue at [#4169](https://gith…

Read on GitHub Advisory Database

On 10/22/2026, 01:54 AM, GitHub Advisory Database published "pypdf: Possible infinite loop when hitting EOF in standard xref table" (type: Advisory). Severity is "Medium" (medium). Related technologies: Python, GitHub. CVE: CVE-2026-113794.