CVE-2026-26017

Name
CVE-2026-26017
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
security-advisories@github.com https://github.com/coredns/coredns/releases/tag/v1.14.2
security-advisories@github.com https://github.com/coredns/coredns/security/advisories/GHSA-c9v3-4pv7-87pr
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:25127
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:8151
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/security/cve/CVE-2026-26017
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://bugzilla.redhat.com/show_bug.cgi?id=2445244
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26017.json
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:36873

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:coredns.io:coredns:*:*:*:*:*:*:*:* coredns >= None < 1.14.2

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
coredns edge-community 1.13.2-r6 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns edge-community 1.13.2-r5 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns edge-community 1.13.2-r4 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns edge-community 1.13.2-r3 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns edge-community 1.13.2-r2 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns edge-community 1.13.2-r1 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns edge-community 1.13.2-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns edge-community 1.12.3-r5 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns edge-community 1.12.3-r4 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns edge-community 1.12.3-r3 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns edge-community 1.12.3-r2 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns edge-community 1.12.3-r1 fossdd <fossdd@pwned.life> possibly vulnerable
coredns edge-community 1.12.3-r0 fossdd <fossdd@pwned.life> possibly vulnerable
coredns edge-community 1.12.2-r1 fossdd <fossdd@pwned.life> possibly vulnerable
coredns edge-community 1.12.2-r0 fossdd <fossdd@pwned.life> possibly vulnerable
coredns edge-community 1.12.1-r2 fossdd <fossdd@pwned.life> possibly vulnerable
coredns edge-community 1.12.1-r1 fossdd <fossdd@pwned.life> possibly vulnerable
coredns edge-community 1.12.1-r0 fossdd <fossdd@pwned.life> possibly vulnerable
coredns edge-community 1.12.0-r5 fossdd <fossdd@pwned.life> possibly vulnerable
coredns edge-community 1.12.0-r4 fossdd <fossdd@pwned.life> possibly vulnerable
coredns edge-community 1.12.0-r3 fossdd <fossdd@pwned.life> possibly vulnerable
coredns edge-community 1.12.0-r1 Mark Pashmfouroush <mark@markpash.me> possibly vulnerable
coredns edge-community 1.12.0-r0 Mark Pashmfouroush <mark@markpash.me> possibly vulnerable
coredns edge-community 1.11.3-r0 Mark Pashmfouroush <mark@markpash.me> possibly vulnerable
coredns edge-community 1.9.3-r0 Mark Pashmfouroush <mark@markpash.me> possibly vulnerable
coredns 3.24-community 1.13.2-r5 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns 3.23-community 1.12.3-r10 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns 3.23-community 1.12.3-r9 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns 3.23-community 1.12.3-r8 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns 3.23-community 1.12.3-r7 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns 3.23-community 1.12.3-r6 Achill Gilgenast <achill@achill.org> possibly vulnerable
coredns 3.23-community 1.12.3-r5 Achill Gilgenast <achill@achill.org> possibly vulnerable