CVE-2026-79992CWE-78command-injection

CVE-2026-79992

High · published August 25, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
3.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00145 · 3.4th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-08-25T22:18Z
References (8)
https://access.redhat.com/errata/RHSA-2026:80506 · [email protected]https://access.redhat.com/errata/RHSA-2026:80507 · [email protected]https://access.redhat.com/errata/RHSA-2026:84591 · [email protected]https://access.redhat.com/security/cve/CVE-2026-79992 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2523665 · [email protected]http://www.openwall.com/lists/oss-security/2026/08/26/15 · af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/10/11/1 · af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/10/14/4 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 27 AUG 06:46Z
    EPSS moved — → 0%
    epss
  • 25 AUG 17:16Z
    Emacs: local shell command injection through the user field in emacs tramp
    cvelistv5