## Pillow: APNG background disposal allocates full canvas before decompression bomb check

- 種別: advisory
- 重大度: high
- 関連技術: python
- CVE: CVE-2026-112399
- 公開日時: 2026-10-21T21:17:56.000Z
- 情報源: GitHub Advisory Database (https://github.com/advisories/GHSA-5xm2-6676-qcp9)
- パーマリンク: https://vulnpulse.app/items/ghsa-ghsa-5xm2-6676-qcp9

影響: pip:Pillow >= 8.1.0, < 13.0.0 → 13.0.0
============================================================================ APNG background disposal allocates full canvas before decompression bomb check Location: src/PIL/PngImagePlugin.py:1000 in PngImageFile._seek() Commit: a707c6b21c313880d0771e54965d142dd42358b6 ============================================================================ A 126-byte animated PNG file makes Pillow's Image.open() allocate and fill memory sized by the image dimensions the file claims, before Pillow's built-i…