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HighFix available

emacs security update

Type: advisorySources: OSV

Emacs is the extensible, customizable, self-documenting real-time display editor. At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. And it is an entire ecosystem of functionality beyond text editing, including a project planner, mail and news reader, debugger interface, calendar, and more. Security Fix(es): A code execution flaw was found in Emacs, affecting versions prior to 31.2. The Flymake mode using language backends other than Lisp would execute arbitrary code from the edited file while performing syntax checking. Viewing or editing untrusted files using Emacs could lead to arbitrary code execution with the privileges of the user running Emacs.(CVE-2026-96442)

Products
emacs
Affected versions
Not specified
Fixed versions
27.2-20.oe2203sp4
CVEs
CVE-2026-96442
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 20:41 UTC · Revision 1

Source evidence

emacs security update

core-osv · Original source

Published 16 Oct 2026, 12:00 UTC

Emacs is the extensible, customizable, self-documenting real-time display editor. At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. And it is an entire ecosystem of functionality beyond text editing, including a project planner, mail and news reader, debugger interface, calendar, and more. Security Fix(es): A code execution flaw was found in Emacs, affecting versions prior to 31.2. The Flymake mode using language backends other than Lisp would execute arbitrary code from the edited file while performing syntax checking. Viewing or editing untrusted files using Emacs could lead to arbitrary code execution with the privileges of the user running Emacs.(CVE-2026-96442)

osv:OESA-2026-4406

emacs

Fixed versions: 27.2-20.oe2203sp4

Complete source record
{
  "id": "38873c9901d0b5a8f835848205ec2c1dcd2de0a922a4b6fd03f6e09f6721cee1",
  "url": "https://osv.dev/vulnerability/OESA-2026-4406",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "emacs security update",
    "summary": "Emacs is the extensible, customizable, self-documenting real-time display editor. At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. And it is an entire ecosystem of functionality beyond text editing, including a project planner, mail and news reader, debugger interface, calendar, and more. Security Fix(es): A code execution flaw was found in Emacs, affecting versions prior to 31.2. The Flymake mode using language backends other than Lisp would execute arbitrary code from the edited file while performing syntax checking. Viewing or editing untrusted files using Emacs could lead to arbitrary code execution with the privileges of the user running Emacs.(CVE-2026-96442)",
    "evidence": "osv:OESA-2026-4406",
    "products": [
      {
        "name": {
          "value": "emacs",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "27.2-20.oe2203sp4",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "OESA-2026-4406",
      "aliases": [
        "OESA-2026-4406"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "27.2-20.oe2203sp4"
                }
              ]
            }
          ],
          "package": {
            "name": "emacs",
            "purl": "pkg:rpm/openEuler/emacs&distro=openEuler-22.03-LTS-SP4",
            "ecosystem": "openEuler:22.03-LTS-SP4"
          },
          "database_specific": {
            "source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4406.json"
          },
          "ecosystem_specific": {
            "src": [
              "emacs-27.2-20.oe2203sp4.src.rpm"
            ],
            "noarch": [
              "emacs-filesystem-27.2-20.oe2203sp4.noarch.rpm",
              "emacs-help-27.2-20.oe2203sp4.noarch.rpm",
              "emacs-terminal-27.2-20.oe2203sp4.noarch.rpm"
            ],
            "x86_64": [
              "emacs-27.2-20.oe2203sp4.x86_64.rpm",
              "emacs-common-27.2-20.oe2203sp4.x86_64.rpm",
              "emacs-debuginfo-27.2-20.oe2203sp4.x86_64.rpm",
              "emacs-debugsource-27.2-20.oe2203sp4.x86_64.rpm",
              "emacs-devel-27.2-20.oe2203sp4.x86_64.rpm",
              "emacs-lucid-27.2-20.oe2203sp4.x86_64.rpm",
              "emacs-nox-27.2-20.oe2203sp4.x86_64.rpm"
            ],
            "aarch64": [
              "emacs-27.2-20.oe2203sp4.aarch64.rpm",
              "emacs-common-27.2-20.oe2203sp4.aarch64.rpm",
              "emacs-debuginfo-27.2-20.oe2203sp4.aarch64.rpm",
              "emacs-debugsource-27.2-20.oe2203sp4.aarch64.rpm",
              "emacs-devel-27.2-20.oe2203sp4.aarch64.rpm",
              "emacs-lucid-27.2-20.oe2203sp4.aarch64.rpm",
              "emacs-nox-27.2-20.oe2203sp4.aarch64.rpm"
            ]
          }
        }
      ],
      "modified": "2026-10-16T12:15:20.422731639Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-96442"
      ],
      "references": [
        "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4406",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-96442"
      ],
      "provider_metadata": {
        "severity": "High"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-96442",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 340910,
  "published_at": "2026-10-16T12:00:15+00:00"
}