CVE-2026-112400

Pillow is a Python imaging library. From 9.2.0 until 13.0.0, Pillow can retain a rejected GIF frame size after a decompression-bomb exception. In GifImageFile._seek, a crafted GIF can leave rejected dimensions stored after Image.DecompressionBombError; if an application catches that exception and continues processing the same image object, later seek or load operations allocate according to those dimensions and can exhaust memory, denying service. This issue is fixed in version 13.0.0.

• CWE-400
• CWE-770

• https://github.com/python-pillow/Pillow/commit/6faed707cfb760a4cbd726ddc8406f576cf35bf7
• https://github.com/python-pillow/Pillow/releases/tag/13.0.0
• https://github.com/python-pillow/Pillow/security/advisories/GHSA-65qm-jvmh-6pqg
• https://github.com/python-pillow/Pillow/security/advisories/GHSA-65qm-jvmh-6pqg

Published

Oct 19, 2026

Last Modified

Oct 20, 2026

Status

Awaiting Analysis

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