CVEvulnerability
CVE-2026-55798
4.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-06
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.5 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
- Weaknesses
- CWE-78
Description
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.
Affected configurations
• python pillow (< 12.3.0)
Related
Weakness · CWE (1)
- CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness
References
- https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst Release Notes
- https://github.com/python-pillow/Pillow/commit/8404ea5fe5df40fc34aa1e51403dd6fce0778b8a Patch
- https://github.com/python-pillow/Pillow/commit/88194166691b7b603529b8b036ab3ab9cedd2de4 Patch
- https://github.com/python-pillow/Pillow/commit/b0e06caa64c1405aa3da0bb1d2bd9a77ca22de7f Patch
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-4x4j-2g7c-83w6 Exploit, Vendor Advisory
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-4x4j-2g7c-83w6 Exploit, Vendor Advisory