7.7
High
CVE-2026-26017 CoreDNS is a DNS server that chains plugins
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Advanced Cluster Management for Kubernetes 2.14 1780204249 | earliest → < 1780204249 | 1780204249 |
| Red Hat Advanced Cluster Management for Kubernetes 2.15 1774086225 | earliest → < 1774086225 | 1774086225 |
| Red Hat Connectivity Link 1 | Versions not published | |
| Red Hat OpenShift Container Platform 4 | Versions not published | |
| coredns 1.14 | earliest → < 1.14.2 | 1.14.2 |
| Red Hat Advanced Cluster Management for Kubernetes 2.13 1782924937 | earliest → < 1782924937 | 1782924937 |
References
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
Other CVEs of Red Hat Advanced Cluster Management for Kubernetes 2.14
The 76 CVEs of Red Hat Advanced Cluster Management for Kubernetes 2.14 →
CVE-2026-89060
A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a…
7.7
High
CVE-2026-73137
A flaw was found in the multicloud-operators-subscription component of Red Hat Advanced Cluster Management (RHACM)
7.7
High
CVE-2026-67567
A flaw was found in the multicloud-operators-subscription component
9.9
Critical
CVE-2026-76827
A flaw was found in search-indexer
6.8
Medium