This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-55380 →

DEBIAN-CVE-2026-55380

Pillow is a Python imaging library. Prior to 12.3.0, PIL/GdImageFile.py GdImageFile._open() read image dimensions from the GD 2.x header and stored th...

Original description

The description as published by the source.

Pillow is a Python imaging library. Prior to 12.3.0, PIL/GdImageFile.py GdImageFile._open() read image dimensions from the GD 2.x header and stored them in self._size without calling Image._decompression_bomb_check(), allowing a crafted .gd file to trigger excessive C-heap allocation when loaded. This issue is fixed in version 12.3.0.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 pillow

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 pillow

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 pillow

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"12.3.0-1"}]}]

References

advisory security-tracker.debian.org