Predictable Seed in PRNG Affecting coredns-1.14-compat package, versions <1.14.2-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-COREDNS114COMPAT-15440413
  • published8 Mar 2026
  • disclosed6 Mar 2026

Introduced: 6 Mar 2026

NewCVE-2026-26018  (opens in a new tab)
CWE-337  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Minimos:latest coredns-1.14-compat to version 1.14.2-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream coredns-1.14-compat package and not the coredns-1.14-compat package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1