Cloudanix VulnDB

CVE-2026-26018

High · 7.5

CVSS

7.5

EPSS

0.8%

Published

Mar 6, 2026

CISA due date

—

The record

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.

Affected packages

Ecosystem Package Introduced Fixed
Chainguard eks-distro-coredns-1.32 0 1.32.35-r1
Chainguard eks-distro-coredns-1.33 0 1.33.25-r1
Chainguard eks-distro-coredns-1.35 0 1.35.7-r1
Chainguard eks-distro-coredns-fips-1.32 0 1.32.35-r1
Chainguard eks-distro-coredns-fips-1.33 0 1.33.25-r1
Chainguard eks-distro-coredns-fips-1.35 0 1.35.7-r1
Chainguard kubernetes-dns-node-cache 0 1.26.7-r9
Wolfi kubernetes-dns-node-cache 0 1.26.7-r9
openSUSE:Leap 15.6 govulncheck-vulndb 0 0.0.20260317T205859-150000.1.152.1
openSUSE:Leap 16.0 coredns 0 1.14.2-bp160.1.1
openSUSE:Tumbleweed coredns 0 1.14.2-1.1

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