CoreDNS is a DNS server that chains plugins. Prior to version 1.14.0, multiple CoreDNS server implementations (gRPC, HTTPS, and HTTP/3) lack critical resource-limiting controls. An unauthenticated remote attacker can exhaust memory and degrade or crash the server by opening many concurrent connections, streams, or sending oversized request bodies. The issue is similar in nature to CVE-2025-47950 (QUIC DoS) but affects additional server types that do not enforce connection limits, stream limits, or message size constraints. Version 1.14.0 contains a patch.
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Affected Vendors & Products
References
History
Fri, 09 Jan 2026 13:30:00 +0000
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Coredns.io
Coredns.io coredns |
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Coredns.io
Coredns.io coredns |
Fri, 09 Jan 2026 00:15:00 +0000
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threat_severity
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cvssV3_1
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Thu, 08 Jan 2026 18:15:00 +0000
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ssvc
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Thu, 08 Jan 2026 15:45:00 +0000
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| Description | CoreDNS is a DNS server that chains plugins. Prior to version 1.14.0, multiple CoreDNS server implementations (gRPC, HTTPS, and HTTP/3) lack critical resource-limiting controls. An unauthenticated remote attacker can exhaust memory and degrade or crash the server by opening many concurrent connections, streams, or sending oversized request bodies. The issue is similar in nature to CVE-2025-47950 (QUIC DoS) but affects additional server types that do not enforce connection limits, stream limits, or message size constraints. Version 1.14.0 contains a patch. | |
| Title | CoreDNS gRPC/HTTPS/HTTP3 servers lack resource limits, enabling DoS via unbounded connections and oversized messages | |
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-01-08T15:33:12.711Z
Updated: 2026-01-08T15:50:35.397Z
Reserved: 2025-12-15T20:13:34.486Z
Link: CVE-2025-68151
Updated: 2026-01-08T15:50:28.034Z
Status : Awaiting Analysis
Published: 2026-01-08T16:15:59.847
Modified: 2026-01-08T18:08:18.457
Link: CVE-2025-68151