Pillow: Reachable undefined behavior in native integer operations, potentially leading to denial of service or logic integrity compromise

影響: pip:pillow < 13.0.0 → 13.0.0

Affected Object and Source Package: Pillow 12.3.0 Source: PyPI sdist pillow-12.3.0.tar.gz SHA-256: 3b8182a766685eaa002637e28b4ec8d6b18819a0c71f579bf0dbaa5830297cce Sink: src/_imaging.c:2809:15, xsize += dx Details The code in Pillow 12.3.0 is: c for (xsize = 0; text; text++) { int dx = self->glyphs[text].dx; if (dx > 0 && xsize > INT_MAX - dx) { PyErr_SetString(PyExc_OverflowError, "Width too large"); return -1; } xsize += dx; } The PILfont glyph advance is parsed from a signed 16-bit field, so…

Read on GitHub Advisory Database

On 10/23/2026, 01:01 AM, GitHub Advisory Database published "Pillow: Reachable undefined behavior in native integer operations, potentially leading to denial of service or logic integrity compromise" (type: Advisory). Severity is "Medium" (medium). Related technologies: Python. CVE: CVE-2026-96641.