Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-86141 Details

Description

xmlregexp in libxml2 before 2.15.4 has a NULL pointer dereference in xmlRegNewParserCtxt after a strdup failure, i.e., it does not calculate a string length after NULL checking.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:3.3 LOWVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CNA: [email protected]CVSS-B:2.9 LOWVector:CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/GNOME/libxml2/commit/e89a8aae4c9b40cdafcf66b3f9e57c62db37bb55	[email protected]	Patch
https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4	[email protected]	Release Notes
https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1107	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-252	Unchecked Return Value	[email protected]

Affected Products

Product	Versions
xmlsoft libxml2	< 2.15.4
CPE cpe:2.3:a:xmlsoft:libxml2:::::::: Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 15, 2026	Initial Analysis	[email protected]
Sep 9, 2026	CVE Modified	CISA-ADP
Sep 5, 2026	New CVE Received	[email protected]