CVE-2026-59205

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.

Affected Software

Weaknesses

• CWE-787: CWE-787: Out-of-bounds Write

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6

References

• https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6
• https://github.com/python-pillow/Pillow/pull/9715
• https://github.com/python-pillow/Pillow/commit/a9ffc42bedf4fc0a7ef8d6486e7f9e81e3397721
• https://github.com/python-pillow/Pillow/releases/tag/12.3.0

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