high7.5
CVE-2026-112392
Pillow: NULL dereference in ImagingExpand via rank filters on zero-size images
Impact
Pillow is a Python imaging library. Prior to 13.0.0, Pillow's rank-based filters can dereference invalid image storage for a zero-size image. ImagingExpand() allocates a non-empty output and then faults while replicating edges by reading the first pixel from empty input storage; ImagingRankFilter is never reached. An attacker can supply or cause creation of a zero-size image to an application that applies a rank, median, minimum, or maximum filter. This causes a native process crash. This issue is fixed in version 13.0.0.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | Pillow | <= 12.3.0 | 13.0.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Python | Pillow | before 13.0.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-27h8-gf7j-v5hc
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-27h8-gf7j-v5hc
- https://nvd.nist.gov/vuln/detail/CVE-2026-112392
- https://github.com/python-pillow/Pillow/commit/443e3130a8c11594fd0e296afad497e11e678961
- https://github.com/python-pillow/Pillow/releases/tag/13.0.0