CVE-2026-40192

N/A

Description

Pillow is a Python imaging library. Versions 10.3.0 through 12.1.1 did not limit the amount of GZIP-compressed data read when decoding a FITS image, making them vulnerable to decompression bomb attacks. A specially crafted FITS file could cause unbounded memory consumption, leading to denial of service (OOM crash or severe performance degradation). If users are unable to immediately upgrade, they should only open specific image formats, excluding FITS, as a workaround.

CVE Details

CVSS v3.1 ScoreN/A

Published4/15/2026

Last Modified4/17/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-400CWE-770

References

https://github.com/python-pillow/Pillow/commit/3cb854e8b2bab43f40e342e665f9340d861aa628(security-advisories@github.com)

https://github.com/python-pillow/Pillow/pull/9521(security-advisories@github.com)

https://github.com/python-pillow/Pillow/security/advisories/GHSA-whj4-6x5x-4v2j(security-advisories@github.com)

https://pillow.readthedocs.io/en/stable/releasenotes/12.2.0.html#prevent-fits-decompression-bomb(security-advisories@github.com)

IOC Correlations

No correlations recorded

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