CVE-2026-0989

LOW EPSS 30.8%

Published Jan 15, 20265mo ago · Modified Jun 17, 20262w ago

3.7 CVSS 3.1

Low

Published Jan 15, 2026 5mo ago

Last Modified Jun 17, 2026 2w ago

Description

A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are handled. The parser does not enforce a limit on inclusion depth when resolving nested <include> directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This may lead to stack exhaustion and application crashes, creating a denial-of-service risk.

CVSS Details

Base Score

3.7

Exploitability

2.2

Impact

1.4

Vector string

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

Attack Vector Network

Attack Complexity High

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality None

Integrity None

Availability Low

Threat Intelligence

EPSS Exploit Probability

30.8% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-674

References 4

access.redhat.com https://access.redhat.com/errata/RHSA-2026:7519
access.redhat.com https://access.redhat.com/security/cve/CVE-2026-0989
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2429933
gitlab.gnome.org https://gitlab.gnome.org/GNOME/libxml2/-/issues/998

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.