CVE-2026-26017
HIGHCoreDNS <1.14.2 - Auth Bypass
Title source: llmDescription
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.
Scores
CVSS v3
7.7
EPSS
0.0004
EPSS Percentile
12.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Classification
CWE
CWE-367
Status
published
Affected Products (2)
coredns/coredns
< 1.14.2Go
coredns.io/coredns
< 1.14.2
Timeline
Published
Mar 06, 2026
Tracked Since
Mar 06, 2026