Pillow: Heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIO

影響: pip:Pillow >= 2.0.0, < 13.0.0 → 13.0.0

============================================================================ Heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIO Location: src/libImaging/TiffDecode.c:94 in _tiffWriteProc() Commit: a707c6b21c313880d0771e54965d142dd42358b6 ============================================================================ Pillow can write attacker-chosen data past the end of a heap buffer when it saves a TIFF image to an in-memory destination such as io.BytesIO rather than to a file. The…

Read on GitHub Advisory Database

On 10/22/2026, 06:28 AM, GitHub Advisory Database published "Pillow: Heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIO" (type: Advisory). Severity is "Critical" (critical). Related technologies: Python. CVE: CVE-2026-112393.