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    CVE-2025-68151

    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.

    Published:Jan 8, 2026
    Last Modified:Jan 22, 2026
    EPS:Jan 8, 2026
    EPSS Score:0.00122
    CVSS Score:7.5

    Affected Products

    Vendor
    Coredns.io
    Product
    Coredns

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-62994 (CVSS 3.7) — CoreDNS is a DNS server written in Go. From 1.9.4 until 1.14.5, a network DNS client allowed to request AXFR f…
    CVE-2026-35579 (CVSS 8.2) — CoreDNS is a DNS server written in Go. In versions prior to 1.14.3, the gRPC, QUIC, DoH, and DoH3 transport im…
    CVE-2026-33489 (CVSS 8.2) — CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the transfer plugin can select the w…
    CVE-2026-32936 (CVSS 8.7) — CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-HTTPS (DoH) GET path ac…
    CVE-2026-32934 (CVSS 8.7) — CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-QUIC (DoQ) server can b…
    CVE-2026-33190 (CVSS 8.7) — CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the tsig plugin can be bypassed on n…
    CVE-2026-26017 (CVSS 7.7) — CoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a logical vulnerability in CoreDNS allow…
    CVE-2026-26018 (CVSS 7.5) — CoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a denial of service vulnerability exists…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High