PT-2026-63586 · Powerdns+2 · Recursor+1

CVE-2026-52684

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Published

2026-07-23

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Updated

2026-07-23

CVSS v3.1

3.7

Low

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)
Description A flaw exists where the capping of Time to Live (TTL) values—the duration a DNS record is cached—is not enforced when an authoritative server responds slowly and records expire during the process. This specific condition occurs when almost expired records are used to refresh authoritative Name Server (NS) records, leading to a lack of data required to enforce the TTL limits.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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Related Identifiers

CVE-2026-52684

Affected Products

Recursor
Pdns-Recursor