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.
Published: 2026-10-11
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 15 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 14 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Title OS Command Injection in Emacs TRAMP via Filename emacs: zero-click local command execution via TRAMP
References
Metrics threat_severity

None

threat_severity

Important


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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-15T18:08:59.704Z

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

Link: CVE-2026-108976

cve-icon Vulnrichment

Updated: 2026-10-15T16:18:45.468Z

cve-icon NVD

Status : Received

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

Modified: 2026-10-15T19:17:20.457

Link: CVE-2026-108976

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-11T20:11:10Z

Links: CVE-2026-108976 - Bugzilla

cve-icon OpenCVE Enrichment

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

Weaknesses
  • CWE-184

    Incomplete List of Disallowed Inputs