CoreDNS ACL Bypass (coredns coredns)
En bref
- Source
- NVD
- EPSS
- EPSS 0.40 % · centile 34 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- GitHub_M
- Statut NVD
- Modified
Rechercher sur…
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.
Faiblesses (CWE)
- CWE-367 — Situation de compétition TOCTOU
Références
- https://github.com/coredns/coredns/security/advisories/GHSA-c9v3-4pv7-87pr
- https://github.com/coredns/coredns/releases/tag/v1.14.2
- https://access.redhat.com/security/cve/CVE-2026-26017
- https://bugzilla.redhat.com/show_bug.cgi?id=2445244
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26017.json
- https://access.redhat.com/errata/RHSA-2026:36873
- https://access.redhat.com/errata/RHSA-2026:25127
- https://access.redhat.com/errata/RHSA-2026:8151
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N | GitHub_M |
| CVSS 3.1 | HIGH 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N | redhat-SADP |
| CVSS 3.1 | HIGH 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | MEDIUM 6.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | HIGH 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Avis
- GHSA-c9v3-4pv7-87pr — CoreDNS ACL Bypass
- GO-2026-4630 — CoreDNS ACL Bypass in github.com/coredns/coredns
Références européennes
- ENISA EUVD · EUVD-2026-10042
- GCVE · GCVE-0-2026-26017
Avis du CERT-FR
- CERTFR-2026-AVI-0299 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:coredns.io:coredns:*:*:*:*:*:*:*:*< 1.14.2
Produits affectés
| Produit | Versions |
|---|---|
| coredns · coredns | affected < 1.14.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |