VDB
CVE-2026-112401
CVE-2026-112401
PUBLISHED
CVSS 6.9 MEDIUM
Reported by GitHub_M · Published October 19, 2026
Pillow is a Python imaging library. From 5.4.0 until 13.0.0, Pillow performs quadratic copying while parsing GIF comments. GifImageFile._seek() repeatedly appends immutable bytes for comment sub-blocks and multiple comment extensions, and frame zero is parsed during Image.open(). An attacker can submit a small-dimension GIF containing many comment extensions to any application that opens the file. This can consume excessive CPU and deny service before the application can inspect the image. This issue is fixed in version 13.0.0.
Risk Scores
CVSS 4.0
6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| python-pillow | Pillow | >= 5.4.0, < 13.0.0 |
| chainguard | nemo-gym | 0 |
| chainguard | nemo-rl-cuda-13.0 | 0 |
| wolfi | open-webui | 0 |
| wolfi | py3-pillow | 0 |
| chainguard | apache-beam-python-3.12-sdk | 0 |
| chainguard | py3-pillow | 0 |
| chainguard | open-webui | 0 |
| PyPI | Pillow | 5.4.0 |
| chainguard | openstack-horizon-2025.2 | 0 |
| python-pillow | Pillow | 5.4.0 |
| chainguard | py3-pytorch-cuda-13.0 | 0 |
| chainguard | superset-fips-6.1 | 0 |
Timeline
- Oct 19, 2026 CVE Published
- Oct 20, 2026 EPSS Score
- Oct 20, 2026 Coalition ESS Score
- Oct 20, 2026 CVE Updated
- Oct 21, 2026 EPSS Score
- Oct 24, 2026 EPSS Score
- Oct 25, 2026 EPSS Score
- Oct 29, 2026 EPSS Score
- Oct 30, 2026 Security Advisory
- Oct 31, 2026 EPSS Score
References
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-74r2-7ff9-mjj2 x_refsource_CONFIRM
- https://github.com/python-pillow/Pillow/commit/68a3fe957d8a4d552e8c69d96066d749f0614c7e x_refsource_MISC
- https://github.com/python-pillow/Pillow/releases/tag/13.0.0 x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-112401 advisory
- https://github.com/advisories/GHSA-74r2-7ff9-mjj2 advisory