CVE-2026-26017

high Red Hat
CVSS v3 Base Score
7.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Published: March 6, 2026
Last Modified: March 6, 2026
Vendor: Red Hat

Description

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.

CWE

CWE-367

Affected Products

Red Hat Advanced Cluster Management for Kubernetes 2Red Hat Connectivity Link 1Red Hat OpenShift Container Platform 4

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com 🔗 github.com