Pillow is a Python imaging library. Prior to 12.3.0, when Pillow loads an uncompressed McIdas AREA image from a filename through the mmap raw codec path, attacker-controlled header words can set a row stride smaller than the natural row width, causing pixel access such as Image.tobytes(), getpixel, convert, or save to read beyond the mapped region and disclose adjacent process memory or fault. This issue is fixed in version 12.3.0.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://github.com/python-pillow/Pillow/commit/6a8de891fb00968e5ea79bfa84368ed90b3cfc1d Patch
- https://github.com/python-pillow/Pillow/pull/9719 Issue Tracking, Patch
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-62p4-gmf7-7g93 Exploit, Mitigation, Vendor Advisory
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-62p4-gmf7-7g93 Exploit, Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.3 · pythonNVD modified 2026-10-24 21:10
Affected (CPE criteria) 1
cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*
References 5
- https://github.com/python-pillow/Pillow/commit/6a8de891fb00968e5ea79bfa84368ed90b3cfc1d Patch
- https://github.com/python-pillow/Pillow/pull/9719 Issue Tracking, Patch
- https://github.com/python-pillow/Pillow/releases/tag/12.3.0 Product, Release Notes
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-62p4-gmf7-7g93 Exploit, Mitigation, Vendor Advisory
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-62p4-gmf7-7g93 Exploit, Mitigation, Vendor Advisory