A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-method` 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.)
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://github.com/kubernetes/kubernetes/issues/136677 |
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History
Tue, 03 Feb 2026 22:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-method` 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.) | |
| Title | ingress-nginx auth-method nginx configuration injection | |
| Weaknesses | CWE-20 | |
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: kubernetes
Published:
Updated: 2026-02-03T22:16:47.223Z
Reserved: 2026-01-29T00:06:06.902Z
Link: CVE-2026-1580
No data.
Status : Received
Published: 2026-02-03T23:16:06.290
Modified: 2026-02-03T23:16:06.290
Link: CVE-2026-1580
No data.