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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.

PUBLISHED Reserved 2026-04-22 | Published 2026-04-22 | Updated 2026-04-22 | Assigner redhat




MEDIUM: 6.1CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

Problem types

Off-by-one Error

Product status

Default status
unknown

Default status
unknown

Default status
unknown

Default status
unknown

Default status
unknown

Timeline

2026-04-19:Reported to Red Hat.
2026-04-19:Made public.

Credits

Red Hat would like to thank Gaetano Zappulla (Tinexta Defence SpA) for reporting this issue.

References

access.redhat.com/security/cve/CVE-2026-6861 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2459992 (RHBZ#2459992) issue-tracking

cve.org (CVE-2026-6861)

nvd.nist.gov (CVE-2026-6861)

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