CVE-2026-96442

Emacs: emacs: arbitrary code execution in flymake mode

HIGH
7.8
CVSS Score
Published: September 23, 2026 at 10:10 AM UTC
Updated: October 27, 2026 at 10:19 PM UTC
2 products affected across 2 vendorsEnterprise LinuxGNU Emacs

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0
Affected range stops below 31.2, so it looks safe — our inference, not a vendor statement
All versions10
Vendor states this is fixed in 1:27.2-18.el9_8.3 (unaffected)
Vendor states this is fixed in 1:29.4-14.el10_2.3 (unaffected)
Vendor states this is fixed in 6 (unknown)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-94

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