CVE-2026-13002 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Vendors	Products
Redhat	Enterprise Linux Openshift

No data.

No data.

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Vendors	Products

References

Link	Providers
https://access.redhat.com/security/cve/CVE-2026-13002
https://bugzilla.redhat.com/show_bug.cgi?id=2486360

History

Fri, 14 Aug 2026 15:30:00 +0000

Type	Values Removed	Values Added
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.
Title		Dnsmasq: infinite loop dos in dnssec nsec/nsec3 type bitmap parsing
First Time appeared		Redhat Redhat enterprise Linux Redhat openshift
Weaknesses		CWE-835
CPEs		cpe:/a:redhat:openshift:4 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9
Vendors & Products		Redhat Redhat enterprise Linux Redhat openshift
References		https://access.redhat.com/security/cve/CVE-2026-13002 https://bugzilla.redhat.com/show_bug.cgi?id=2486360
Metrics		cvssV3_1 `{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}`

MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-08-14T15:02:26.469Z

Updated: 2026-08-14T16:09:15.195Z

Reserved: 2026-06-23T13:53:15.018Z

Link: CVE-2026-13002

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-14T16:16:49.267

Modified: 2026-08-14T16:16:49.267

Link: CVE-2026-13002

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-14T16:30:05Z

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