Kubernetes
CVE-2026-1580
HIGH
GHSA-9h3p-52vh-959w
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
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.)
AnalysisAI
Arbitrary code execution in ingress-nginx controllers via malicious nginx.ingress.kubernetes.io/auth-method Ingress annotations allows authenticated attackers to execute commands within the controller context and access cluster-wide Secrets. This vulnerability affects Nginx and Kubernetes deployments where the ingress controller has default cluster-wide Secret access permissions. No patch is currently available.
Technical ContextAI
Classified as CWE-20 (Improper Input Validation). 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.)
Affected ProductsAI
A security issue was discovered in ingress-nginx where the nginx.ingress.kubernetes.io/auth-method Ingress annotation can be used to inject configur
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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View allVendor StatusVendor
SUSE
Severity: High| Product | Status |
|---|---|
| openSUSE Leap 15.6 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | Fixed |
| openSUSE Leap 15.5 | Fixed |
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External POC / Exploit Code
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