high7.8
CVE-2026-42311
Pillow has an OOB Write with Invalid PSD Tile Extents (Integer Overflow)
Impact
Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution. This issue has been patched in version 12.2.0.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | pillow | >= 10.3.0, < 12.2.0 | 12.2.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Python | Pillow | from 10.3.0 before 12.2.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-pwv6-vv43-88gr
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-cfh3-3jmp-rvhc
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-pwv6-vv43-88gr
- https://github.com/python-pillow/Pillow/pull/9520
- https://nvd.nist.gov/vuln/detail/CVE-2026-42311
- https://github.com/python-pillow/Pillow/commit/58f9a1d166dcb0c274807d4423522d205b0c35ea
- https://github.com/python-pillow/Pillow/releases/tag/12.2.0