CVE-2026-10846

UNKNOWN 0.0

Insufficient verification that responses belong to a query

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermore not the query ID, neither the question of the query is matched with that of the response. This makes applications, that use ldns for (stub) resolver functionality over UDP, vulnerable for off-path poisoning attacks. The drill tool, which is shipped with ldns, suffers from this vulnerability.

CWE	CWE-346
Vendor	nlnet labs
Product	ldns
Published	Jun 10, 2026

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Affected Versions

NLnet Labs / ldns

1.2.0 < 1.9.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

nlnetlabs.nl: https://www.nlnetlabs.nl/downloads/ldns/CVE-2026-10846.txt

Credits

Pablo Ruiz from 'codecome.ai'