GNU Emacs before 31.2 (and TRAMP through 2.8.2) allows OS command injection via a filename because tramp-user-regexp has an incomplete list of disallowed inputs. NOTE: this issue exists because of an incomplete fix for CVE-2026-79992.

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Solution

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Workaround

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History

Sun, 11 Oct 2026 22:45:00 +0000

Type Values Removed Values Added
Title OS Command Injection in Emacs TRAMP via Filename

Sun, 11 Oct 2026 20:15:00 +0000

Type Values Removed Values Added
Description GNU Emacs before 31.2 (and TRAMP through 2.8.2) allows OS command injection via a filename because tramp-user-regexp has an incomplete list of disallowed inputs. NOTE: this issue exists because of an incomplete fix for CVE-2026-79992.
First Time appeared Gnu
Gnu emacs
Weaknesses CWE-184
CPEs cpe:2.3:a:gnu:emacs:*:*:*:*:*:*:*:*
Vendors & Products Gnu
Gnu emacs
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-11T20:11:10.826Z

Reserved: 2026-10-11T20:11:10.046Z

Link: CVE-2026-108976

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-11T21:16:43.580

Modified: 2026-10-11T21:16:43.580

Link: CVE-2026-108976

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-11T22:30:18Z

Weaknesses