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.

INFO

Published Date :

2026-03-06T15:36:15.655Z

Last Modified :

2026-03-06T16:06:41.093Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-26017 vulnerability.

Vendors Products
Coredns.io
  • Coredns
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-26017.

URL Resource
https://github.com/coredns/coredns/releases/tag/v1.14.2 cve-icon cve-icon cve-icon
https://github.com/coredns/coredns/security/advisories/GHSA-c9v3-4pv7-87pr cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-26017 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-26017 cve-icon
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