CVE-2026-59199

Summary

Pillow is a Python imaging library. Prior to 12.3.0, Pillow public image coordinate APIs can trigger a native heap out-of-bounds write when given coordinates near the signed 32-bit integer limits in Image.paste(), Image.crop(), or Image.alpha_composite(). This issue is fixed in version 12.3.0.

Affected Software

Weaknesses

• CWE-190: CWE-190: Integer Overflow or Wraparound
• 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-6r8x-57c9-28j4

References

• https://github.com/python-pillow/Pillow/security/advisories/GHSA-6r8x-57c9-28j4
• https://github.com/python-pillow/Pillow/pull/9703
• https://github.com/python-pillow/Pillow/commit/ceefc348eb3c3844c7f9796ef2cc3a7dd5fbba7b
• https://github.com/python-pillow/Pillow/releases/tag/12.3.0

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