Description
A flaw was found in Emacs TRAMP. A local attacker could exploit this vulnerability by processing maliciously crafted filenames. This occurs because TRAMP concatenates login arguments without proper sanitization, which are then passed to a local shell. Successful exploitation could lead to arbitrary code execution.
References8
- access.redhat.com/errata/RHSA-2026:80506
- access.redhat.com/errata/RHSA-2026:80507
- access.redhat.com/errata/RHSA-2026:84591
- access.redhat.com/security/cve/CVE-2026-79992
- bugzilla.redhat.com/show_bug.cgi?id=2523665
- www.openwall.com/lists/oss-security/2026/08/26/15
- www.openwall.com/lists/oss-security/2026/10/11/1
- www.openwall.com/lists/oss-security/2026/10/14/4
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 13 · as of 9 November 2026
- CWE
- CWE-78
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.