CVE-2026-52690 (GCVE-0-2026-52690)

Vulnerability from cvelistv5 – Published: 2026-06-25 13:01 – Updated: 2026-06-25 14:21
VLAI
Title
Spoofed answers can mark an authoritative non-EDNS capable
Summary
Spoofing replies to Recursor might mark an IP of an authoritative server as not supporting EDNS, causing valdiation of DNSSEC records served by that server to fail.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 14:21 UTC
CWE
  • Authentication Bypass by Spoofing
  • CWE-290 - Authentication Bypass by Spoofing
Assigner
OX
References
Impacted products
Vendor Product Version
PowerDNS Recursor Affected: 5.2.0 , < 5.2.11 (semver)
Affected: 5.3.0 , < 5.3.8 (semver)
Affected: 5.4.0 , < 5.4.3 (semver)
Create a notification for this product.
Date Public
2026-06-24 22:00
Credits
Mehtab Zafar
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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