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2 vulnerabilities found for ldns by NLnet Labs
CVE-2026-10846 (GCVE-0-2026-10846)
Vulnerability from nvd – Published: 2026-06-10 06:37 – Updated: 2026-06-10 14:45
VLAI
Title
Insufficient verification that responses belong to a query
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-346 - Origin Validation Error
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NLnet Labs | ldns |
Affected:
1.2.0 , < 1.9.1
(semver)
|
Date Public
2026-06-10 00:00
Credits
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CVE-2026-10846 (GCVE-0-2026-10846)
Vulnerability from cvelistv5 – Published: 2026-06-10 06:37 – Updated: 2026-06-10 14:45
VLAI
Title
Insufficient verification that responses belong to a query
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-346 - Origin Validation Error
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NLnet Labs | ldns |
Affected:
1.2.0 , < 1.9.1
(semver)
|
Date Public
2026-06-10 00:00
Credits
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