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Affected Component
Analysis
python3-pillow
Patched
Name
CVE-2026-40192
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.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://github.com/python-pillow/Pillow/pull/9521Issue Tracking
Analysis#
Vulnerability Ratings#
8.7
CVSSv4
7.5
CVSSv31
NaN
other
Others affected components#
Resolved with patches#
python3-pillow (yocto:scarthgap)
#
Title
Author
Resolve
1
Only read as much data from gzip-decompressed data as
Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
CVE-2026-40192