CVE-2026-13002 — MEDIUM (4.4)

Vulnerability Description

A flow has been identified into dnssec.c library, causing an infinite loop to dnsmasq service. An attacker who controls any DNSSEC-signed zone can hang the dnsmasq process with a single crafted response, killing all DNS resolution for its clients.

CVSS Score

4.4

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Redhat	Openshift Container Platform	4.0
Redhat	Enterprise Linux	6.0

Related Weaknesses (CWE)

CWE-835

References

https://access.redhat.com/security/cve/CVE-2026-13002Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2486360Issue TrackingVendor Advisory

FAQ

What is CVE-2026-13002?

CVE-2026-13002 is a vulnerability with a CVSS score of 4.4 (MEDIUM). A flow has been identified into dnssec.c library, causing an infinite loop to dnsmasq service. An attacker who controls any DNSSEC-signed zone can hang the dnsmasq process with a single crafted respon...

How severe is CVE-2026-13002?

CVE-2026-13002 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13002?

Check the references section above for vendor advisories and patch information. Affected products include: Redhat Openshift Container Platform, Redhat Enterprise Linux.