CVE-2026-112894
Pillow is a Python imaging library. From 5.1.0 until 13.0.0, Pillow takes quadratic time to reserve PDF object identifiers when saving many
CVSS
7.5
Alta
EPSS
0.6%
p49
KEV
—
Exploit Today
15
0-100
Publicado: 19 de out. de 2026 · Última mod.: 27 de out. de 2026 · CWE-407
Pillow is a Python imaging library. From 5.1.0 until 13.0.0, Pillow takes quadratic time to reserve PDF object identifiers when saving many frames with save_all enabled. PdfParser.next_object_id() repeatedly rebuilds and scans all previously reserved identifiers for every object. An attacker can supply a multi-frame image, including a small APNG with a large declared frame count, to an application that converts it to a multipage PDF. This can consume excessive CPU and deny service. This issue is fixed in version 13.0.0.
- github.comhttps://github.com/python-pillow/Pillow/commit/f6a852555f1a1bdff7781abf25f1a3b8bd6ce6cb
- github.comhttps://github.com/python-pillow/Pillow/releases/tag/13.0.0
- github.comhttps://github.com/python-pillow/Pillow/security/advisories/GHSA-jg86-v3jv-hrpm
- github.comhttps://github.com/python-pillow/Pillow/security/advisories/GHSA-jg86-v3jv-hrpm