CVE-2026-96889

Librsvg: use-after-free when xml includes have duplicated entities

State: Published
Severity: 7.8 High
Published: Sep 23, 2026
Updated: Oct 29, 2026
Reserved: Sep 23, 2026

Description

A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes) with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	redhat

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
Red Hat Enterprise Linux 10Red Hat	0:1.0.1-1.el10_2.2 and laterNot affected
Red Hat Enterprise Linux 10Red Hat	0:2.57.1-9.el10_2.10 and laterNot affected
Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat	0:2.57.1-9.el10_0.1 and laterNot affected
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat	0:2.40.20-1.el7_9.1 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	0:2.42.7-6.el8_10 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat	0:2.42.7-4.el8_4.1 and laterNot affected
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat	0:2.42.7-4.el8_4.1 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat	0:2.42.7-4.el8_6.1 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat	0:2.42.7-4.el8_6.1 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat	0:2.42.7-4.el8_8.1 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat	0:2.42.7-4.el8_8.1 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:2.50.7-3.el9_8.1 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat	0:2.50.7-1.el9_2.2 and laterNot affected
Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRed Hat	0:2.50.7-3.el9_4.1 and laterNot affected
Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat	0:2.50.7-3.el9_6.1 and laterNot affected
Red Hat Enterprise Linux 6Red Hat

References

RHSA-2026:86331vendor-advisory
RHSA-2026:86841vendor-advisory
RHSA-2026:86842vendor-advisory
RHSA-2026:86921vendor-advisory
RHSA-2026:92212vendor-advisory
RHSA-2026:92213vendor-advisory
RHSA-2026:92214vendor-advisory
RHSA-2026:92218vendor-advisory
RHSA-2026:92336vendor-advisory
RHSA-2026:92353vendor-advisory
RHSA-2026:92382vendor-advisory
RHSA-2026:92579vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-96889vdb-entry
RHBZ#2539279issue-tracking
https://crates.io/crates/librsvg
https://gitlab.gnome.org/GNOME/librsvg/-/work_items/1241
https://rustsec.org/advisories/RUSTSEC-2026-0305.html

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.