Security Advisory

CVE-2026-40192

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-04-15 22:53:56

Last updated 2026-04-16 13:37:19

Assigner GitHub_M

State PUBLISHED

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.

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