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.
- CVSS 3.1
- 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-25)
- CWE
- CWE-835
- Published
- Modified
- Record from
- the NVD, synced
Affected
- python:pillow
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-pg7v-jwj7-p798 | PyPI | pillow | >=12.0.0 <12.3.0 | 12.3.0 |
| PYSEC-2026-3452 | PyPI | pillow | >=12.0.0 <12.3.0 | 12.3.0 |
References
- https://github.com/python-pillow/Pillow/commit/03992618118b4a76b6163cd72ab5ecd684133b83
- https://github.com/python-pillow/Pillow/pull/9708
- https://github.com/python-pillow/Pillow/releases/tag/12.3.0
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-pg7v-jwj7-p798
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-pg7v-jwj7-p798