Bug 2460569 (CVE-2026-33259)

Summary: CVE-2026-33259 pdns-recursor: concurrent modification of RPZ data can lead to denial of service
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in PowerDNS Recursor. 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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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2460827    
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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.