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CVE PROGRAM SOURCE RECORD7.7 High

CVE-2026-26017

CoreDNS ACL Bypass

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Status
Published
Published
Updated
Assigning organization
GitHub_M

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

coredns coredns

  • < 1.14.2affected

References