Time-of-check Time-of-use (TOCTOU) Affecting kubernetes-dns-node-cache-fips package, versions <1.26.8-r1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.39% (31st percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-KUBERNETESDNSNODECACHEFIPS-18302245
  • published25 Jul 2026
  • disclosed6 Mar 2026

Introduced: 6 Mar 2026

CVE-2026-26017  (opens in a new tab)
CWE-367  (opens in a new tab)

How to fix?

Upgrade Minimos:latest kubernetes-dns-node-cache-fips to version 1.26.8-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kubernetes-dns-node-cache-fips package and not the kubernetes-dns-node-cache-fips 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 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.

CVSS Base Scores

version 3.1