CVE-2026-26017: CoreDNS ACL Bypass

Overview

Severity
High (CVSS 7.7)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Exploit Status
Not Exploited
Patch Tuesday
2026-Mar
Released
2026-03-08
Last Updated
2026-03-11
EPSS Score
0.05% (percentile: 15.8%)

Affected Products (2)

Open Source Software

  • azl3 coredns 1.11.4-14 on Azure Linux 3.0
  • cbl2 coredns 1.11.1-25 on CBL Mariner 2.0

Revision History

  • 2026-03-08: Information published.
  • 2026-03-09: Information published.
  • 2026-03-11: Information published.