CVE-2026-59205 (GCVE-0-2026-59205)

Vulnerability from cvelistv5 – Published: 2026-07-14 15:48 – Updated: 2026-07-14 17:31
VLAI
Title
Pillow: Controlled heap out-of-bounds write in `ImageCmsTransform.apply()` via output mode mismatch
Summary
Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.apply(im, imOut) API can trigger controlled native heap corruption when the caller supplies an output image whose mode does not match the transform's declared output mode. This issue is fixed in version 12.3.0.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 17:30 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
python-pillow Pillow Affected: < 12.3.0
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