Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-79992

CVE-2026-79992HIGH

Red Hat Red Hat Enterprise Linux 10 — Emacs: emacs: command injection via crafted filenames in tramp

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  H  H    7.8   .0014    3.4     —

AFFECTED
  Product                      Versions     Fixed
  Red Hat Enterprise Linux 10  unspecified  1:29.4-14.el10_2.3
  Red Hat Enterprise Linux 8   unspecified  1:26.1-15.el8_10.2
  Red Hat Enterprise Linux 8   unspecified  1:26.1-15.el8_10.2
  Red Hat Enterprise Linux 9   unspecified  1:27.2-18.el9_8.2
  Red Hat Enterprise Linux 6   unspecified  —
  Red Hat Enterprise Linux 7   unspecified  —

TIMELINE
  Aug 25  Reserved by redhat
  Aug 25  Published (CNA: redhat)
  Oct 11  PATCH SHIPPED — CVE-2026-79992 (Red Hat Enterprise Linux 8). Fixed in Red Hat Enterprise Linux 8 1:26.1-15.el8_10.2.

CWE-78 · CNA: redhat · CVSS v3.1 · 8 references · NVD status: Awaiting Analysis

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 25, 2026	Reserved	Reserved by redhat
August 25, 2026	Published	Published (CNA: redhat)
October 11, 2026	PATCH SHIPPED	PATCH SHIPPED — CVE-2026-79992 (Red Hat Enterprise Linux 8). Fixed in Red Hat Enterprise Linux 8 1:26.1-15.el8_10.2.

Affected

Affected products and packages — 6 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Red Hat	Red Hat Enterprise Linux 10	—	—	1:29.4-14.el10_2.3
Red Hat	Red Hat Enterprise Linux 8	—	—	1:26.1-15.el8_10.2
Red Hat	Red Hat Enterprise Linux 8	—	—	1:26.1-15.el8_10.2
Red Hat	Red Hat Enterprise Linux 9	—	—	1:27.2-18.el9_8.2
Red Hat	Red Hat Enterprise Linux 6	—	—	—
Red Hat	Red Hat Enterprise Linux 7	—	—	—

Weaknesses

CWE-78

References (8)

http://www.openwall.com/lists/oss-security/2026/08/26/15
http://www.openwall.com/lists/oss-security/2026/10/11/1
http://www.openwall.com/lists/oss-security/2026/10/14/4
https://access.redhat.com/errata/RHSA-2026:80506 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/errata/RHSA-2026:80507 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/errata/RHSA-2026:84591 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/security/cve/CVE-2026-79992 [vdb-entry, x_refsource_REDHAT]
https://bugzilla.redhat.com/show_bug.cgi?id=2523665 [issue-tracking, x_refsource_REDHAT]

Authoritative record: CVE-2026-79992 at cve.org

Vendors: red hat

Weaknesses: CWE-78

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-79992 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.