CVE-2026-0989

Jan. 16, 2026, 3:55 p.m.

3.7
Low

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.

Product(s) Impacted

Vendor Product Versions
Libxml2
  • Libxml2
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-674
Uncontrolled Recursion
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a libxml2 libxml2 / / / / / / / /

References

https://access.redhat.com/security/cve/CVE-2026-0989
https://bugzilla.redhat.com/show_bug.cgi?id=2429933

Tags

[email protected]
CWE-674
2026-01-15
CVE-2026-0989

CVSS Score

3.7 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: HIGH
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: LOW

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

    View Vector String

Timeline

Published: Jan. 15, 2026, 3:15 p.m.
Last Modified: Jan. 16, 2026, 3:55 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.