OS Command Injection The advisory has been revoked - it doesn't affect any version of package python-pillow-tk (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS7-PYTHONPILLOWTK-17894348
- published8 Jul 2026
- disclosed6 Jul 2026
Introduced: 6 Jul 2026
CVE-2026-55798 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:7.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python-pillow-tk package and not the python-pillow-tk package as distributed by Centos.
Pillow is a Python imaging library. Prior to 12.3.0, WindowsViewer.get_command() constructed a cmd.exe shell command by directly embedding a file path into an f-string without escaping and passed the result to subprocess.Popen(..., shell=True), allowing shell metacharacters in the file path to inject arbitrary cmd.exe commands. This issue is fixed in version 12.3.0.
References
- https://access.redhat.com/security/cve/CVE-2026-55798
- https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst
- https://github.com/python-pillow/Pillow/commit/8404ea5fe5df40fc34aa1e51403dd6fce0778b8a
- https://github.com/python-pillow/Pillow/commit/88194166691b7b603529b8b036ab3ab9cedd2de4
- https://github.com/python-pillow/Pillow/commit/b0e06caa64c1405aa3da0bb1d2bd9a77ca22de7f
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-4x4j-2g7c-83w6