---
id: CVE-2026-6861
title: 'Emacs: emacs: memory corruption vulnerability when processing svg css'
summary: >-
  A flaw was found in GNU Emacs. This vulnerability, a memory corruption issue,
  occurs when Emacs processes specially crafted SVG (Scalable Vector Graphics)
  CSS (Cascading Style Sheets) data. A local user could exploit this by
  convincing a…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H'
cvssSource: cna
cwe:
  - CWE-193
vendor: Red Hat
product: emacs
affected:
  - emacs
  - emacs
  - emacs
  - emacs
  - emacs
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-04-22T15:53:25.674096Z'
published: '2026-04-22'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T22:49:05.853Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-6861'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-6861'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2459992'
    label: RHBZ#2459992
tags:
  - cve.org
epss: 0.00108
epssPercentile: 0.012
ingestedAt: '2026-11-05T23:41:31.941Z'
---

## Overview

A flaw was found in GNU Emacs. This vulnerability, a memory corruption issue, occurs when Emacs processes specially crafted SVG (Scalable Vector Graphics) CSS (Cascading Style Sheets) data. A local user could exploit this by convincing a victim to open a malicious SVG file, which may lead to a denial of service (DoS) or potentially information disclosure.

## Affected

- `emacs`
- `emacs`
- `emacs`
- `emacs`
- `emacs`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

### Workarounds

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.