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CVE-2026-6861

Emacs: emacs: memory corruption vulnerability when processing svg css

Published: Apr 22, 2026Updated: May 6, 2026 Sources: CVE List NVDCWE-193
NVD MITRE
6.1CVSSMEDIUM
EPSS Score
0.1%
Top 98.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

Description

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:LA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-193

Affected Products

emacsgnuOSS Libraries
Red Hat Enterprise Linux 10Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 6Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 7Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 8Red Hat
On-premOS
Operating Systems / linux-distro
gnuoss-projectUSOSS Librariesaka g. nu
red hatcommercialUSOperating Systemsaka red hat
and 1 more affected products View all →

Exploitability

Workaround Available

References

https://access.redhat.com/security/cve/CVE-2026-6861
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2459992
bugzilla.redhat.com

Timeline

Published
Apr 22, 2026
Last Updated
May 6, 2026

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