CVE-2026-112393
Pillow is a Python imaging library. From 2.0.0 until 13.0.0, Pillow ha ...
Severity by source
Trivy's own label is CRITICAL. Rated critical by NVD, GHSA, Bitnami.
Description
Pillow is a Python imaging library. From 2.0.0 until 13.0.0, Pillow has a heap buffer overflow and stale-heap disclosure in _tiffWriteProc when saving compressed TIFF data through libtiff to a target without a usable fileno(), such as BytesIO. The callback sizes its allocation from the prior buffer size instead of the current write position, allowing an attacker-controlled out-of-line TIFF tag or retained ICC profile to be copied beyond the allocation after libtiff seeks forward. This overflow can crash the process and may allow code execution. Independently, unwritten alignment gaps in compressed TIFF output larger than 64 KiB can disclose stale heap bytes without a crafted tag. File paths and targets with real file descriptors are unaffected. This issue is fixed in version 13.0.0.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | pillow | 13.0.0 |
| pip::GitHub Security Advisory pip | pillow | 13.0.0 |
| chainguard | apache-beam-python-3.12-sdk, nemo-gym, nemo-rl-cuda-13.0 and 6 more | 2.77.0-r5 and 8 more |
| debian 11 | pillow | no fix listed |
| debian 12 | pillow | no fix listed |
| debian 13 | pillow | no fix listed |
| debian 14 | pillow | no fix listed |
| echo | pillow | no fix listed |
| echo pip::Echo OSV | pillow | 12.3.0+echo.1 |
| rapidfort amazon linux 2023 | python-pillow | no fix listed |
| rapidfort debian 12 | pillow | 0:13.0.0-1 |
| rapidfort debian 13 | pillow | 0:13.0.0-1 |
Show all 24 entries from 14 sources
| Source | Package | Fixed in |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | pillow | 13.0.0 |
| pip::GitHub Security Advisory pip | pillow | 13.0.0 |
| chainguard | apache-beam-python-3.12-sdk | 2.77.0-r5 |
| chainguard | nemo-gym | 0.5.0_rc0_git20260729-r6 |
| chainguard | nemo-rl-cuda-13.0 | 0.7.0-r11 |
| chainguard | nemo-skills | 0.7.0_git20260911-r5 |
| chainguard | open-webui | 0.12.3-r6 |
| chainguard | openstack-horizon-2025.2 | 25.5.2_git20260914-r12 |
| chainguard | py3-pillow | 13.0.0-r0 |
| chainguard | py3-pytorch-cuda-13.0 | 2.14.1-r2 |
| chainguard | superset-fips-6.1 | 6.1.0-r11 |
| debian 11 | pillow | no fix listed |
| debian 12 | pillow | no fix listed |
| debian 13 | pillow | no fix listed |
| debian 14 | pillow | no fix listed |
| echo | pillow | no fix listed |
| echo pip::Echo OSV | pillow | 12.3.0+echo.1 |
| rapidfort amazon linux 2023 | python-pillow | no fix listed |
| rapidfort debian 12 | pillow | 0:13.0.0-1 |
| rapidfort debian 13 | pillow | 0:13.0.0-1 |
| seal pip::Seal Security Database | pillow | 10.0.1+sp999, 7.2.0+sp999, 9.3.0+sp999, 9.5.0+sp999 |
| seal pip::Seal Security Database | seal-pillow | 10.0.1+sp999, 7.2.0+sp999, 9.3.0+sp999, 9.5.0+sp999 |
| wolfi | open-webui | 0.12.3-r6 |
| wolfi | py3-pillow | 13.0.0-r0 |
References
- https://advisory.echohq.com/cve/CVE-2026-112393
- https://getsafety.com/v/SFTY-20261021-13350/52d
- https://github.com/python-pillow/Pillow
- https://github.com/python-pillow/Pillow/commit/11582e5ffbdceb973d5ee593f3105af5a9852b40
- https://github.com/python-pillow/Pillow/releases/tag/13.0.0
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-332p-7hrc-92wf
- https://nvd.nist.gov/vuln/detail/CVE-2026-112393