CVE-2026-79992
Emacs: local shell command injection through the user field in emacs tramp
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.
INFO
Published Date :
Aug. 25, 2026, 5:16 p.m.
Last Modified :
Aug. 25, 2026, 5:16 p.m.
Remotely Exploit :
No
Source :
redhat
Affected Products
The following products are affected by CVE-2026-79992
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 53f830b8-0a3f-465b-8143-3b8a9948e749 |
Solution
- Sanitize filenames processed by Emacs TRAMP.
- Apply software updates for Emacs TRAMP.
- Restrict processing of maliciously crafted filenames.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-79992 vulnerability anywhere in the article.