emacs security update
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 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"
}