Bug 2460569 (CVE-2026-33259) - CVE-2026-33259 pdns-recursor: concurrent modification of RPZ data can lead to denial of service
Summary: CVE-2026-33259 pdns-recursor: concurrent modification of RPZ data can lead to...
Keywords:
Status: NEW
Alias: CVE-2026-33259
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: 2460827
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-22 11:01 UTC by OSIDB Bzimport
Modified: 2026-04-24 18:25 UTC (History)
0 users

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Description OSIDB Bzimport 2026-04-22 11:01:31 UTC 
Having many concurrent transfers of the same RPZ can lead to inconsistent RPZ data, use after free and/or a crash of the recursor. Normally concurrent transfers of the same RPZ zone can only occur with a malfunctioning RPZ provider.
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