Bug 2460573 (CVE-2026-33601) - CVE-2026-33601 pdns-recursor: insufficient validation of ZONEMD record
Summary: CVE-2026-33601 pdns-recursor: insufficient validation of ZONEMD record
Keywords:
Status: NEW
Alias: CVE-2026-33601
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2460829
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-22 11:01 UTC by OSIDB Bzimport
Modified: 2026-04-24 18:26 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-04-22 11:01:45 UTC 
If you use the zoneToCache function with a malicious authoritative server, an attacker can send a zone that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.
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