Bug 2486360 (CVE-2026-13002) - CVE-2026-13002 dnsmasq: Infinite loop DoS in DNSSEC NSEC/NSEC3 type bitmap parsing
Summary: CVE-2026-13002 dnsmasq: Infinite loop DoS in DNSSEC NSEC/NSEC3 type bitmap pa...
Keywords:
Status: NEW
Alias: CVE-2026-13002
Deadline: 2026-09-30
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2516039
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-08 14:14 UTC by OSIDB Bzimport
Modified: 2026-08-15 08:30 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-06-08 14:14:31 UTC 
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.
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