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.

INFO

Published Date :

2026-04-15T22:53:56.147Z

Last Modified :

2026-04-16T13:37:19.918Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-40192 vulnerability.

Vendors Products
Python
  • Pillow
Python-pillow
  • Pillow
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-40192.

URL Resource
https://github.com/python-pillow/Pillow/commit/3cb854e8b2bab43f40e342e665f9340d861aa628 cve-icon cve-icon cve-icon
https://github.com/python-pillow/Pillow/pull/9521 cve-icon cve-icon cve-icon
https://github.com/python-pillow/Pillow/security/advisories/GHSA-whj4-6x5x-4v2j cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-40192 cve-icon
https://pillow.readthedocs.io/en/stable/releasenotes/12.2.0.html#prevent-fits-decompression-bomb cve-icon cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-40192 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact