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.
Published: 2026-09-05
Score: 2.9 Low
EPSS: < 1% Very Low
KEV: No
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 09 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 08 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
Title Null Pointer Dereference in libxml2 xmlregexp Parser libxml2: libxml2: Denial of Service due to NULL pointer dereference in xmlRegNewParserCtxt
Weaknesses CWE-476
References
Metrics threat_severity

None

threat_severity

Low


Sat, 05 Sep 2026 05:45:00 +0000

Type Values Removed Values Added
Title Null Pointer Dereference in libxml2 xmlregexp Parser

Sat, 05 Sep 2026 04:45:00 +0000

Type Values Removed Values Added
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.
First Time appeared Xmlsoft
Xmlsoft libxml2
Weaknesses CWE-252
CPEs cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
Vendors & Products Xmlsoft
Xmlsoft libxml2
References
Metrics cvssV3_1

{'score': 2.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-09T19:15:52.468Z

Reserved: 2026-09-05T04:27:58.625Z

Link: CVE-2026-86141

cve-icon Vulnrichment

Updated: 2026-09-09T19:15:49.254Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-05T05:17:13.007

Modified: 2026-09-09T20:20:54.250

Link: CVE-2026-86141

cve-icon Redhat

Severity : Low

Publid Date: 2026-09-05T04:27:59Z

Links: CVE-2026-86141 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-08T02:15:08Z

Weaknesses