CVE-2026-112392Pillow: NULL dereference in ImagingExpand via rank filters on zero-size images

Descripción

Pillow is a Python imaging library. Prior to 13.0.0, Pillow's rank-based filters can dereference invalid image storage for a zero-size image. ImagingExpand() allocates a non-empty output and then faults while replicating edges by reading the first pixel from empty input storage; ImagingRankFilter is never reached. An attacker can supply or cause creation of a zero-size image to an application that applies a rank, median, minimum, or maximum filter. This causes a native process crash. This issue is fixed in version 13.0.0.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Correcciones de Ubuntu

• USN-9064-1 Pillow vulnerabilities Ubuntu 26.10, 26.04, 24.04, 22.04, 20.04, 18.04, 16.04, 14.04 · 12.11.2026 · pillow

Referencias y parches

• https://github.com/python-pillow/Pillow/security/advisories/GHSA-27h8-gf7j-v5hc ExploitPatchVendor Advisory
• https://github.com/python-pillow/Pillow/commit/443e3130a8c11594fd0e296afad497e11e678961 Patch
• https://github.com/python-pillow/Pillow/releases/tag/13.0.0 Release Notes