CVE-2026-6861: Emacs: emacs: memory corruption vulnerability when processing svg css

Overview

Severity

Medium (CVSS 6.1)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H/E:U

Exploit Status

Not Exploited

Patch Tuesday

2026-Apr

Released

2026-04-29

Last Updated

2026-05-06

EPSS Score

0.02% (percentile: 6.1%)

Affected Products (3)

Mariner

• azl3 emacs 29.4-3 on Azure Linux 3.0
• cbl2 emacs 29.4-3 on CBL Mariner 2.0

Other

• 21314-17084

Revision History

• 2026-04-29: Information published.
• 2026-05-04: Information published.
• 2026-05-06: Information published.