CVE-2026-59203
Pillow is a Python imaging library. From 12.0.0 through 12.2.0, Pillow's EPS parser in PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive, allowing a crafted EPS file to cause Image.open() to seek backwards to the same directive and parse it repeatedly in an infinite loop. This issue is fixed in version 12.3.0.
- Score
- CVSS 3.1 7.5 High
- Status
- Modified - security-advisories@github.com
- Published
- 2026-07-14
- Last modified
- 2026-10-24
- Weaknesses
- CWE-835
Affected products
References
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-pg7v-jwj7-p798
- https://github.com/python-pillow/Pillow/pull/9708
- https://github.com/python-pillow/Pillow/commit/03992618118b4a76b6163cd72ab5ecd684133b83
- https://github.com/python-pillow/Pillow/releases/tag/12.3.0
