Vulnerability · Published Nov 5, 2026 · Assigned by GitHub_M
CVE-2026-112899Pillow: EPS load(scale) lets Ghostscript render past the decompression bomb limit
Medium 6.3
In plain English
A medium-severity resource allocation without limits in Pillow from python-pillow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Pillow is a Python imaging library. In versions 2.3.0 through 12.3.0, EPS rendering does not validate the scaled image dimensions before invoking Ghostscript. Applications that process untrusted EPS or PostScript files using an application-selected scale greater than one can incur excessive Ghostscript CPU and temporary disk consumption. In versions with decompression-bomb protection, the scaled output is checked only after Ghostscript has completed rendering, allowing resource consumption beyond the configured pixel limit. The amplification depends on the scale selected by the application, not an attacker-controlled scale value. This issue is fixed in version 13.0.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | pillow | no fix listed | DEBIAN-CVE-2026-112899 |
| Debian:13 | pillow | no fix listed | DEBIAN-CVE-2026-112899 |
| Debian:14 | pillow | no fix listed | DEBIAN-CVE-2026-112899 |
| PyPI | pillow | 13.0.0 | GHSA-vx6w-vv9f-6gvg |
| Ubuntu:22.04:LTS | pillow | no fix listed | UBUNTU-CVE-2026-112899 |
| Ubuntu:24.04:LTS | pillow | no fix listed | UBUNTU-CVE-2026-112899 |
| Ubuntu:26.04:LTS | pillow | no fix listed | UBUNTU-CVE-2026-112899 |
| Ubuntu:26.10 | pillow | no fix listed | UBUNTU-CVE-2026-112899 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| python-pillow | Pillow | >= 2.5.0, < 13.0.0 |
Weakness: CWE-770 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
References
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-vx6w-vv9f-6gvg x_refsource_CONFIRM
- https://github.com/python-pillow/Pillow/pull/10112 x_refsource_MISC
- https://github.com/python-pillow/Pillow/commit/3e8cc105588d1dfe062fcada0b6058c1b5f14b65 x_refsource_MISC
- https://github.com/python-pillow/Pillow/releases/tag/13.0.0 x_refsource_MISC