A AegiFlow
CRITICALCVSS 9.2EPSS 0.3%

CVE-2026-112403

CVE-2026-112403 updated by NVD

Published
2026-10-20
Modified
2026-10-29
EPSS percentile
24%
Sources
github-advisory, nvd

Summary

Pillow is a Python imaging library. Prior to 13.0.0, Pillow's JPEG decoder can write a full-width scanline into a buffer sized for a requested draft scale. ImagingJpegDecode does not verify libjpeg's actual output width and component count after scaling is requested, and an 8-bit lossless SOF3 JPEG decoded by a build linked to libjpeg-turbo 3.x can ignore the requested downscaling geometry. An attacker can supply such a JPEG to an application that uses draft() or thumbnail() to request downscaling. This can corrupt heap memory, crash the process, or potentially allow code execution. Older libjpeg-turbo 2.x and IJG builds reject the SOF3 input. This issue is fixed in version 13.0.0.

Affected packages

EcosystemPackageAffected versionsFixed versions
PyPIPillow—13.0.0

Remediation: Upgrade to 13.0.0 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.