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275 vulnerabilities by powerdns
CVE-2026-52688 (GCVE-0-2026-52688)
Vulnerability from nvd – Published: 2026-07-23 08:03 – Updated: 2026-07-23 13:56
VLAI
EPSS
VEX
Title
RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation
Summary
RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
Date Public
2026-07-21 22:00
Credits
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CVE-2026-52686 (GCVE-0-2026-52686)
Vulnerability from nvd – Published: 2026-07-23 08:03 – Updated: 2026-07-23 13:56
VLAI
EPSS
VEX
Title
Wildcard CNAME proof validation bypass
Summary
The issue is a DNSSEC validation bypass where wildcard expansion proofs (NSEC/NSEC3 records) are accepted without signature validation when the wildcard answer is a CNAME or DNAME record.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Insufficient Verification of Data Authenticity
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
1 reference
Impacted products
Date Public
2026-07-21 22:00
Credits
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CVE-2026-52684 (GCVE-0-2026-52684)
Vulnerability from nvd – Published: 2026-07-23 07:49 – Updated: 2026-07-23 14:00
VLAI
EPSS
VEX
Title
Prefetch Feature Allows Persistent Ghost Domain Cache Poisoning Attack
Summary
If the auth responds very slowly and the records expire in between, the capping of TTLs is not enforced for lack of data. This does not happen on regular resolve as then then the
child records are used immediately if not expired and thus valid, or the
records are expired, and in that case not used. So this case
can only happen if almost expired records are used to refresh the
authoritative NS records.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
Date Public
2026-07-19 22:00
Credits
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CVE-2026-52690 (GCVE-0-2026-52690)
Vulnerability from nvd – Published: 2026-06-25 13:01 – Updated: 2026-06-25 14:21
VLAI
EPSS
VEX
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)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Authentication Bypass by Spoofing
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-42390 (GCVE-0-2026-42390)
Vulnerability from nvd – Published: 2026-06-25 13:01 – Updated: 2026-06-25 14:25
VLAI
EPSS
VEX
Title
ZONEMD validation can be bypassed
Summary
An invalid zone might pass ZONEMD validation while it should not. This is only relevant if ZoneToCache is configured with ZONEMD validation.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Input Validation
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-42389 (GCVE-0-2026-42389)
Vulnerability from nvd – Published: 2026-06-25 13:16 – Updated: 2026-06-25 14:58
VLAI
EPSS
VEX
Title
Reject more queries with invalid header values
Summary
This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Input Validation
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-42388 (GCVE-0-2026-42388)
Vulnerability from nvd – Published: 2026-06-25 12:59 – Updated: 2026-06-25 14:42
VLAI
EPSS
VEX
Title
Missing input validation for catalog zones
Summary
Incomplete validation of the SOA record present in a catalog zone might lead to a crash.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Input Validation
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-42387 (GCVE-0-2026-42387)
Vulnerability from nvd – Published: 2026-06-25 12:59 – Updated: 2026-06-25 14:41
VLAI
EPSS
VEX
Title
Insufficient input validation in ZoneToCache
Summary
A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to a crash of the Recursor due to insuffcient input validation.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Input Validation
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-40012 (GCVE-0-2026-40012)
Vulnerability from nvd – Published: 2026-06-25 12:58 – Updated: 2026-06-25 14:41
VLAI
EPSS
VEX
Title
Information about ECS zero scoped answers might leak to clients that use a specific ECS
Summary
ECS zero scoped answers are stored in the packet cache while they should not. This impacts only configurations that have ECS enabled;
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Exposure of Resource to Wrong Sphere
- CWE-524 - Use of Cache Containing Sensitive Information
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-42004 (GCVE-0-2026-42004)
Vulnerability from nvd – Published: 2026-06-25 12:24 – Updated: 2026-06-25 13:44
VLAI
EPSS
VEX
Title
EDNS options smuggling
Summary
An attacker can send a crafted EDNS OPT record that will be ignored by DNSdist’s filtering rules, but will be rewritten as a valid OPT record when EDNS Client Subnet is inserted, causing the backend to see the EDNS option(s) that DNSdist did not filter.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Misinterpretation of Input
- CWE-115 - Misinterpretation of Input
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-40211 (GCVE-0-2026-40211)
Vulnerability from nvd – Published: 2026-06-25 12:23 – Updated: 2026-06-25 13:45
VLAI
EPSS
VEX
Title
Denial of service via crafted DoH3 queries
Summary
An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3 streams to trigger an out-of-memory condition, resulting in a denial of service.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Allocation of Resources Without Limits or Throttling
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-40210 (GCVE-0-2026-40210)
Vulnerability from nvd – Published: 2026-06-25 12:23 – Updated: 2026-06-25 13:49
VLAI
EPSS
VEX
Title
Out-of-bounds read in SetMacAddrAction
Summary
An out-of-bounds read might happen when SetMacAddrAction is used, potentially resulting in uninitialized memory being sent over the network or a crash.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Buffer Over-read
- CWE-126 - Buffer Over-read
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-40209 (GCVE-0-2026-40209)
Vulnerability from nvd – Published: 2026-06-25 12:23 – Updated: 2026-06-25 13:56
VLAI
EPSS
VEX
Title
Denial of service via IXFR queries
Summary
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Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Missing Release of Resource after Effective Lifetime
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-40208 (GCVE-0-2026-40208)
Vulnerability from nvd – Published: 2026-06-25 12:22 – Updated: 2026-06-25 13:24
VLAI
EPSS
VEX
Title
Denial of service via DoH3 queries
Summary
An attacker might be able to delay the processing of DoH3 queries by sending DoH3 GET queries with an invalid DATA frame.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Incorrect Control Flow Scoping
- CWE-705 - Incorrect Control Flow Scoping
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-40011 (GCVE-0-2026-40011)
Vulnerability from nvd – Published: 2026-06-25 12:22 – Updated: 2026-06-25 13:23
VLAI
EPSS
VEX
Title
Prometheus denial of service via crafted DNS queries
Summary
An attacker sending a large number of crafted DNS queries might be able to trigger a dynamic block being inserted with a value causing invalid output to be produced in the prometheus endpoint. The prometheus endpoint will then be rejected by the scraper until the dynamic block expires.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Encoding or Escaping of Output
- CWE-116 - Improper Encoding or Escaping of Output
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-33612 (GCVE-0-2026-33612)
Vulnerability from nvd – Published: 2026-06-25 12:58 – Updated: 2026-06-25 13:35
VLAI
EPSS
VEX
Title
ZoneToCache can poison the cache
Summary
A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Acceptance of Extraneous Untrusted Data With Trusted Data
- CWE-349 - Acceptance of Extraneous Untrusted Data With Trusted Data
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-52688 (GCVE-0-2026-52688)
Vulnerability from cvelistv5 – Published: 2026-07-23 08:03 – Updated: 2026-07-23 13:56
VLAI
EPSS
VEX
Title
RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation
Summary
RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
Date Public
2026-07-21 22:00
Credits
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CVE-2026-52686 (GCVE-0-2026-52686)
Vulnerability from cvelistv5 – Published: 2026-07-23 08:03 – Updated: 2026-07-23 13:56
VLAI
EPSS
VEX
Title
Wildcard CNAME proof validation bypass
Summary
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Insufficient Verification of Data Authenticity
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
1 reference
Impacted products
Date Public
2026-07-21 22:00
Credits
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CVE-2026-52684 (GCVE-0-2026-52684)
Vulnerability from cvelistv5 – Published: 2026-07-23 07:49 – Updated: 2026-07-23 14:00
VLAI
EPSS
VEX
Title
Prefetch Feature Allows Persistent Ghost Domain Cache Poisoning Attack
Summary
If the auth responds very slowly and the records expire in between, the capping of TTLs is not enforced for lack of data. This does not happen on regular resolve as then then the
child records are used immediately if not expired and thus valid, or the
records are expired, and in that case not used. So this case
can only happen if almost expired records are used to refresh the
authoritative NS records.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
Date Public
2026-07-19 22:00
Credits
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CVE-2026-42389 (GCVE-0-2026-42389)
Vulnerability from cvelistv5 – Published: 2026-06-25 13:16 – Updated: 2026-06-25 14:58
VLAI
EPSS
VEX
Title
Reject more queries with invalid header values
Summary
This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Input Validation
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-52690 (GCVE-0-2026-52690)
Vulnerability from cvelistv5 – Published: 2026-06-25 13:01 – Updated: 2026-06-25 14:21
VLAI
EPSS
VEX
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)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Authentication Bypass by Spoofing
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-42390 (GCVE-0-2026-42390)
Vulnerability from cvelistv5 – Published: 2026-06-25 13:01 – Updated: 2026-06-25 14:25
VLAI
EPSS
VEX
Title
ZONEMD validation can be bypassed
Summary
An invalid zone might pass ZONEMD validation while it should not. This is only relevant if ZoneToCache is configured with ZONEMD validation.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Input Validation
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-42388 (GCVE-0-2026-42388)
Vulnerability from cvelistv5 – Published: 2026-06-25 12:59 – Updated: 2026-06-25 14:42
VLAI
EPSS
VEX
Title
Missing input validation for catalog zones
Summary
Incomplete validation of the SOA record present in a catalog zone might lead to a crash.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Input Validation
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-42387 (GCVE-0-2026-42387)
Vulnerability from cvelistv5 – Published: 2026-06-25 12:59 – Updated: 2026-06-25 14:41
VLAI
EPSS
VEX
Title
Insufficient input validation in ZoneToCache
Summary
A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to a crash of the Recursor due to insuffcient input validation.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Input Validation
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-40012 (GCVE-0-2026-40012)
Vulnerability from cvelistv5 – Published: 2026-06-25 12:58 – Updated: 2026-06-25 14:41
VLAI
EPSS
VEX
Title
Information about ECS zero scoped answers might leak to clients that use a specific ECS
Summary
ECS zero scoped answers are stored in the packet cache while they should not. This impacts only configurations that have ECS enabled;
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Exposure of Resource to Wrong Sphere
- CWE-524 - Use of Cache Containing Sensitive Information
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-33612 (GCVE-0-2026-33612)
Vulnerability from cvelistv5 – Published: 2026-06-25 12:58 – Updated: 2026-06-25 13:35
VLAI
EPSS
VEX
Title
ZoneToCache can poison the cache
Summary
A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Acceptance of Extraneous Untrusted Data With Trusted Data
- CWE-349 - Acceptance of Extraneous Untrusted Data With Trusted Data
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-42004 (GCVE-0-2026-42004)
Vulnerability from cvelistv5 – Published: 2026-06-25 12:24 – Updated: 2026-06-25 13:44
VLAI
EPSS
VEX
Title
EDNS options smuggling
Summary
An attacker can send a crafted EDNS OPT record that will be ignored by DNSdist’s filtering rules, but will be rewritten as a valid OPT record when EDNS Client Subnet is inserted, causing the backend to see the EDNS option(s) that DNSdist did not filter.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Misinterpretation of Input
- CWE-115 - Misinterpretation of Input
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-40211 (GCVE-0-2026-40211)
Vulnerability from cvelistv5 – Published: 2026-06-25 12:23 – Updated: 2026-06-25 13:45
VLAI
EPSS
VEX
Title
Denial of service via crafted DoH3 queries
Summary
An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3 streams to trigger an out-of-memory condition, resulting in a denial of service.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Allocation of Resources Without Limits or Throttling
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-40210 (GCVE-0-2026-40210)
Vulnerability from cvelistv5 – Published: 2026-06-25 12:23 – Updated: 2026-06-25 13:49
VLAI
EPSS
VEX
Title
Out-of-bounds read in SetMacAddrAction
Summary
An out-of-bounds read might happen when SetMacAddrAction is used, potentially resulting in uninitialized memory being sent over the network or a crash.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Buffer Over-read
- CWE-126 - Buffer Over-read
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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CVE-2026-40209 (GCVE-0-2026-40209)
Vulnerability from cvelistv5 – Published: 2026-06-25 12:23 – Updated: 2026-06-25 13:56
VLAI
EPSS
VEX
Title
Denial of service via IXFR queries
Summary
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Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Missing Release of Resource after Effective Lifetime
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
1 reference
Impacted products
Date Public
2026-06-24 22:00
Credits
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