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Vulnerability from cleanstart
Published
2026-08-13 12:10
Modified
2026-08-14 05:57
Summary
Security fixes in kubernetes-dns-node-cache-fips 1.26.0-r1
Details
Package kubernetes-dns-node-cache-fips version 1.26.0-r1 fixes 18 vulnerabilities: CVE-2025-47950, CVE-2023-28452, CVE-2024-0874, CVE-2025-58063, ghsa-cvx7-x8pj-x2gw...
References
| URL | Type | |
|---|---|---|
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},
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{
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}
],
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}
],
"versions": [
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]
}
],
"credits": [],
"database_specific": {},
"details": "Package kubernetes-dns-node-cache-fips version 1.26.0-r1 fixes 18 vulnerabilities: CVE-2025-47950, CVE-2023-28452, CVE-2024-0874, CVE-2025-58063, ghsa-cvx7-x8pj-x2gw...",
"id": "CLEANSTART-2026-LS13491",
"modified": "2026-08-14T05:57:11Z",
"published": "2026-08-13T12:10:09Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/kubernetes/dns"
}
],
"related": [],
"schema_version": "1.7.3",
"summary": "Security fixes in kubernetes-dns-node-cache-fips 1.26.0-r1",
"upstream": [
"CVE-2025-47950",
"CVE-2023-28452",
"CVE-2024-0874",
"CVE-2025-58063",
"ghsa-cvx7-x8pj-x2gw",
"CVE-2026-26017",
"CVE-2026-26018",
"ghsa-h75p-j8xm-m278",
"ghsa-vp29-5652-4fw9",
"ghsa-2wpx-qpw2-g5h5",
"ghsa-h8mm-c463-wjq3",
"ghsa-qhmp-q7xh-99rh",
"CVE-2026-32934",
"CVE-2026-32936",
"CVE-2026-33190",
"CVE-2026-33489",
"CVE-2026-35579",
"ghsa-63cw-r7xf-jmwr"
]
}
CVE-2023-28452 (GCVE-0-2023-28452)
Vulnerability from cvelistv5 – Published: 2024-09-18 00:00 – Updated: 2025-03-19 20:44
VLAI
EPSS
VEX
Summary
An issue was discovered in CoreDNS through 1.10.1. There is a vulnerability in DNS resolving software, which triggers a resolver to ignore valid responses, thus causing denial of service for normal resolution. In an exploit, the attacker could just forge a response targeting the source port of a vulnerable resolver without the need to guess the correct TXID.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-18 18:19 UTC
CWE
- n/a
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
2 references
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CVE-2024-0874 (GCVE-0-2024-0874)
Vulnerability from cvelistv5 – Published: 2024-04-25 16:22 – Updated: 2026-06-02 15:15
VLAI
EPSS
VEX
Title
Coredns: cd bit response is cached and served later
Summary
A flaw was found in coredns. This issue could lead to invalid cache entries returning due to incorrectly implemented caching.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-13 20:18 UTC
CWE
- CWE-524 - Use of Cache Containing Sensitive Information
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2024:0041 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:4850 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:6009 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:6406 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2024-0874 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2219234 | issue-trackingx_refsource_REDHAT |
| https://github.com/coredns/coredns/issues/6186 | |
| https://github.com/coredns/coredns/pull/6354 |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
|
Affected:
0 , < 1.11.2
(semver)
|
|||
| Red Hat | Red Hat OpenShift Container Platform 4.13 |
Unaffected:
v4.13.0-202408260940.p0.ge70f097.assembly.stream.el8 , < *
(rpm)
cpe:/a:redhat:openshift:4.13::el8 cpe:/a:redhat:openshift:4.13::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.14 |
Unaffected:
v4.14.0-202408260910.p0.gfdd6037.assembly.stream.el8 , < *
(rpm)
cpe:/a:redhat:openshift:4.14::el8 cpe:/a:redhat:openshift:4.14::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.15 |
Unaffected:
v4.15.0-202407230407.p0.g1326282.assembly.stream.el9 , < *
(rpm)
cpe:/a:redhat:openshift:4.15::el8 cpe:/a:redhat:openshift:4.15::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.16 |
Unaffected:
v4.16.0-202406131906.p0.g04d84f7.assembly.stream.el9 , < *
(rpm)
cpe:/a:redhat:openshift:4.16::el9 |
|
| Red Hat | Logging Subsystem for Red Hat OpenShift |
cpe:/a:redhat:logging:5 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 |
cpe:/a:redhat:acm:2 |
Date Public
2023-07-03 00:00
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CVE-2025-47950 (GCVE-0-2025-47950)
Vulnerability from cvelistv5 – Published: 2025-06-06 17:32 – Updated: 2025-06-06 21:27
VLAI
EPSS
VEX
Title
CoreDNS Vulnerable to DoQ Memory Exhaustion via Stream Amplification
Summary
CoreDNS is a DNS server that chains plugins. In versions prior to 1.12.2, a Denial of Service (DoS) vulnerability exists in the CoreDNS DNS-over-QUIC (DoQ) server implementation. The server previously created a new goroutine for every incoming QUIC stream without imposing any limits on the number of concurrent streams or goroutines. A remote, unauthenticated attacker could open a large number of streams, leading to uncontrolled memory consumption and eventually causing an Out Of Memory (OOM) crash — especially in containerized or memory-constrained environments. The patch in version 1.12.2 introduces two key mitigation mechanisms: `max_streams`, which caps the number of concurrent QUIC streams per connection with a default value of `256`; and `worker_pool_size`, which Introduces a server-wide, bounded worker pool to process incoming streams with a default value of `1024`. This eliminates the 1:1 stream-to-goroutine model and ensures that CoreDNS remains resilient under high concurrency. Some workarounds are available for those who are unable to upgrade. Disable QUIC support by removing or commenting out the `quic://` block in the Corefile, use container runtime resource limits to detect and isolate excessive memory usage, and/or monitor QUIC connection patterns and alert on anomalies.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-06 18:40 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/coredns/coredns/security/advis… | x_refsource_CONFIRM |
| https://github.com/coredns/coredns/commit/efaed02… | x_refsource_MISC |
| https://datatracker.ietf.org/doc/html/rfc9250 | x_refsource_MISC |
| https://github.com/quic-go/quic-go | x_refsource_MISC |
| https://www.usenix.org/conference/usenixsecurity2… | x_refsource_MISC |
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CVE-2025-58063 (GCVE-0-2025-58063)
Vulnerability from cvelistv5 – Published: 2025-09-09 19:27 – Updated: 2025-09-10 14:26
VLAI
EPSS
VEX
Title
CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion
Summary
CoreDNS is a DNS server that chains plugins. Starting in version 1.2.0 and prior to version 1.12.4, the CoreDNS etcd plugin contains a TTL confusion vulnerability where lease IDs are incorrectly used as TTL values, enabling DNS cache pinning attacks. This effectively creates a DoS condition for DNS resolution of affected services. The `TTL()` function in `plugin/etcd/etcd.go` incorrectly casts etcd lease IDs (64-bit integers) to uint32 and uses them as TTL values. Large lease IDs become very large TTLs when cast to uint32. This enables cache pinning attacks. Version 1.12.4 contains a fix for the issue.
Severity
7.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-10 14:26 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/coredns/coredns/security/advis… | x_refsource_CONFIRM |
| https://github.com/coredns/coredns/commit/e1768a5… | x_refsource_MISC |
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CVE-2026-26017 (GCVE-0-2026-26017)
Vulnerability from cvelistv5 – Published: 2026-03-06 15:36 – Updated: 2026-07-15 01:15
VLAI
EPSS
VEX
Title
CoreDNS ACL Bypass
Summary
CoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a logical vulnerability in CoreDNS allows DNS access controls to be bypassed due to the default execution order of plugins. Security plugins such as acl are evaluated before the rewrite plugin, resulting in a Time-of-Check Time-of-Use (TOCTOU) flaw. This issue has been patched in version 1.14.2.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-06 16:06 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/coredns/coredns/security/advis… | x_refsource_CONFIRM |
| https://github.com/coredns/coredns/releases/tag/v1.14.2 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-26017 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2445244 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:36873 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:25127 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8151 | vendor-advisoryx_refsource_REDHAT |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| coredns | coredns |
Affected:
< 1.14.2
|
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 |
Unaffected:
1782924920 , < *
(rpm)
cpe:/a:redhat:acm:2.13::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 |
Unaffected:
1782924937 , < *
(rpm)
cpe:/a:redhat:acm:2.13::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 |
Unaffected:
1780204232 , < *
(rpm)
cpe:/a:redhat:acm:2.14::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 |
Unaffected:
1780204249 , < *
(rpm)
cpe:/a:redhat:acm:2.14::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 |
Unaffected:
1774086225 , < *
(rpm)
cpe:/a:redhat:acm:2.15::el9 |
|
| Red Hat | Red Hat Connectivity Link 1 |
cpe:/a:redhat:connectivity_link:1 |
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4 |
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CVE-2026-26018 (GCVE-0-2026-26018)
Vulnerability from cvelistv5 – Published: 2026-03-06 15:35 – Updated: 2026-07-15 01:15
VLAI
EPSS
VEX
Title
CoreDNS Loop Detection Denial of Service Vulnerability
Summary
CoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a denial of service vulnerability exists in CoreDNS's loop detection plugin that allows an attacker to crash the DNS server by sending specially crafted DNS queries. The vulnerability stems from the use of a predictable pseudo-random number generator (PRNG) for generating a secret query name, combined with a fatal error handler that terminates the entire process. This issue has been patched in version 1.14.2.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-06 16:07 UTC
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/coredns/coredns/security/advis… | x_refsource_CONFIRM |
| https://github.com/coredns/coredns/releases/tag/v1.14.2 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-26018 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2445242 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:36873 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:25127 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8151 | vendor-advisoryx_refsource_REDHAT |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| coredns | coredns |
Affected:
< 1.14.2
|
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 |
Unaffected:
1782924920 , < *
(rpm)
cpe:/a:redhat:acm:2.13::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 |
Unaffected:
1782924937 , < *
(rpm)
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|
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Unaffected:
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|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 |
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|
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|
| Red Hat | Red Hat Connectivity Link 1 |
cpe:/a:redhat:connectivity_link:1 |
|
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cpe:/a:redhat:openshift:4 |
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CVE-2026-32934 (GCVE-0-2026-32934)
Vulnerability from cvelistv5 – Published: 2026-05-05 19:06 – Updated: 2026-05-06 15:14
VLAI
EPSS
VEX
Title
CoreDNS DNS-over-QUIC unbounded goroutine growth leads to denial of service
Summary
CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-QUIC (DoQ) server can be driven into unbounded goroutine and memory growth by a remote client that opens many QUIC streams and sends only 1 byte per stream. When the worker pool is full, CoreDNS still spawns a goroutine per accepted stream to wait for a worker token. Additionally, active workers block indefinitely in io.ReadFull() with no per-stream read deadline, allowing an attacker to pin all workers by sending a single byte so the read blocks waiting for the second byte of the DoQ length prefix. This enables an unauthenticated remote attacker to cause memory exhaustion and OOM-kill. This issue has been fixed in version 1.14.3. No known workarounds exist.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-06 15:14 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/coredns/coredns/security/advis… | x_refsource_CONFIRM |
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CVE-2026-32936 (GCVE-0-2026-32936)
Vulnerability from cvelistv5 – Published: 2026-05-05 19:07 – Updated: 2026-05-05 19:32
VLAI
EPSS
VEX
Title
CoreDNS DoH GET path missing size validation causes CPU and memory amplification
Summary
CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-HTTPS (DoH) GET path accepts oversized dns= query parameter values and performs URL query parsing, base64 decoding, and DNS message unpacking before rejecting the request. Unlike the POST path, which applies a bounded read via http.MaxBytesReader limited to 65536 bytes, the GET path has no equivalent size validation before expensive processing. A remote, unauthenticated attacker can repeatedly send oversized DoH GET requests to force high CPU usage, large transient memory allocations, and elevated garbage-collection pressure, leading to denial of service. This issue has been fixed in version 1.14.3.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-05 19:32 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
2 references
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|---|---|
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CVE-2026-33190 (GCVE-0-2026-33190)
Vulnerability from cvelistv5 – Published: 2026-05-05 19:02 – Updated: 2026-05-06 12:47
VLAI
EPSS
VEX
Title
CoreDNS TSIG authentication bypass on encrypted DNS transports
Summary
CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the tsig plugin can be bypassed on non-plain-DNS transports (DoT, DoH, DoH3, DoQ, and gRPC) because it trusts the transport writer's TsigStatus() instead of performing verification itself. The DoH and DoH3 writer's TsigStatus() always returns nil, the DoT server does not set TsigSecret on the dns.Server, and the DoQ and gRPC writers also unconditionally return nil. This allows an unauthenticated remote client to bypass TSIG-based authentication and access resources intended to be restricted behind a tsig require all policy. Plain DNS over TCP and UDP are not affected. This issue has been fixed in version 1.14.3.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-06 12:46 UTC
CWE
- CWE-303 - Incorrect Implementation of Authentication Algorithm
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/coredns/coredns/security/advis… | x_refsource_CONFIRM |
| https://github.com/coredns/coredns/releases/tag/v1.14.3 | x_refsource_MISC |
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CVE-2026-33489 (GCVE-0-2026-33489)
Vulnerability from cvelistv5 – Published: 2026-05-05 19:13 – Updated: 2026-05-05 19:43
VLAI
EPSS
VEX
Title
CoreDNS transfer plugin subzone ACL bypass via lexicographic zone comparison
Summary
CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the transfer plugin can select the wrong ACL stanza when both a parent zone and a more-specific subzone are configured. The longestMatch() function in plugin/transfer/transfer.go uses a lexicographic string comparison instead of an actual longest-suffix match to select the winning zone. As a result, a permissive parent-zone transfer rule can override a restrictive subzone rule depending on zone name ordering (e.g., "example.org." > "a.example.org." lexicographically). This allows an unauthorized remote client to perform AXFR/IXFR for the subzone and retrieve its full zone contents. This issue has been fixed in version 1.14.3.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-05 19:43 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/coredns/coredns/security/advis… | x_refsource_CONFIRM |
| https://github.com/coredns/coredns/releases/tag/v1.14.3 | x_refsource_MISC |
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Trend slope:
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(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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