Loop with Unreachable Exit Condition ('Infinite Loop') Affecting dnsmasq package, versions *


Severity

Recommended
low

Based on CentOS security rating.

Threat Intelligence

EPSS
0.15% (4th percentile)

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  • Snyk IDSNYK-CENTOS8-DNSMASQ-18835302
  • published15 Aug 2026
  • disclosed8 Jun 2026

Introduced: 8 Jun 2026

CVE-2026-13002  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 dnsmasq.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dnsmasq package and not the dnsmasq package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

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 Base Scores

version 3.1