Vulnerability in GNU Emacs

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund11 Oct 2026WID-SEC-2026-3857

  GNU Emacs: Vulnerability allows code execution Translated from German

  CVE-2026-108976

[ References ]References

• ftp.gnu.org/gnu/tramp/tramp-2.8.2.tar.gz
• www.openwall.com/lists/oss-security/2026/08/21/1
• www.openwall.com/lists/oss-security/2026/10/11/1