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

- 種別: advisory
- 重大度: critical
- 関連技術: python
- CVE: CVE-2026-112393
- 公開日時: 2026-10-21T21:28:09.000Z
- 情報源: GitHub Advisory Database (https://github.com/advisories/GHSA-332p-7hrc-92wf)
- パーマリンク: https://vulnpulse.app/items/ghsa-ghsa-332p-7hrc-92wf

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…