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CVE PROGRAM SOURCE RECORD5.1 Medium

CVE-2026-42310

Pillow: PDF Parsing Trailer Infinite Loop (DoS)

Description

Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive. This issue has been patched in version 12.2.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

python-pillow Pillow

  • >= 4.2.0, < 12.2.0affected

References