CVE-2026-112895 (GCVE-0-2026-112895)
Vulnerability from cvelistv5
Published
2026-10-19 21:57
Modified
2026-10-20 16:08
CWE
Summary
Pillow is a Python imaging library. From 5.1.0 until 13.0.0, Pillow can exhaust resources while parsing an existing PDF during an append operation. PdfParser follows page-tree child references without cycle or duplication tracking and follows previous-trailer chains with only an exact repeated-offset guard, so deep or cyclic page trees and long chains of unique trailer offsets can exhaust the Python stack. Repeated non-cyclic /Kids references can also cause super-linear CPU and memory use. An attacker can supply such a PDF to an application that calls Image.save with PDF append enabled. This can raise an uncaught RecursionError or consume excessive CPU and memory before output is written, causing denial of service. This issue is fixed in version 13.0.0.
Impacted products
Vendor Product Version
python-pillow Pillow Version: >= 5.1.0, < 13.0.0
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Show details on NVD website


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