ingress-nginx controller - configuration injection via unsanitized auth-tls-match-cn annotation (kubernetes ingress-nginx)
At a glance
- Source
- NVD
- EPSS
- EPSS 36.96 % · percentile 99 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- kubernetes
- NVD status
- Deferred
Description
A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `auth-tls-match-cn` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | kubernetes |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · jordan@liggitt.net (Secondary) |
Advisories
- GHSA-823x-fv5p-h7hw — ngress-nginx controller - configuration injection via unsanitized auth-tls-match-cn annotation
- GO-2025-3565 — ngress-nginx controller - configuration injection via unsanitized auth-tls-match-cn annotation in k8s.io/ingress-nginx
European references
- ENISA EUVD · EUVD-2025-8034
- GCVE · GCVE-0-2025-1097
CERT-FR advisories
- CERTFR-2025-AVI-0239 — Multiples vulnérabilités dans Microsoft Azure Kubernetes Service · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| kubernetes · ingress-nginx | affected 0 ≤ 1.11.4 ; affected 1.12.0 |
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 |