Kubernetes
CVE-2025-1974
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
A security issue was discovered in Kubernetes where under certain conditions, an unauthenticated attacker with access to the pod network can achieve arbitrary code execution in the context of the ingress-nginx controller. This can lead to disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)
AnalysisAI
A critical vulnerability in Kubernetes ingress-nginx controller allows unauthenticated attackers with pod network access to achieve arbitrary code execution in the controller context. Dubbed 'IngressNightmare', this flaw exposes cluster Secrets including TLS certificates and service account tokens accessible to the ingress controller.
Technical ContextAI
The ingress-nginx controller's admission webhook validates Ingress resources but can be exploited to inject arbitrary NGINX configuration directives. By sending crafted AdmissionReview requests to the webhook endpoint, an attacker with pod network access can inject configuration that causes the controller to execute arbitrary code. The controller typically has read access to all cluster Secrets for TLS termination.
Affected ProductsAI
ingress-nginx controller (default Kubernetes installation) Kubernetes clusters using ingress-nginx for ingress management
RemediationAI
Update ingress-nginx controller to the patched version. Restrict network access to the admission webhook endpoint using NetworkPolicies. Minimize the controller's RBAC permissions. Consider migrating to alternative ingress controllers with smaller privilege footprints.
More in Kubernetes
View allCredential-harvesting malware compromised 84 versions of 42 TanStack npm packages on 2026-05-11 via chained GitHub Actio
Kubernetes ingress-nginx contains a configuration injection vulnerability via the mirror-target and mirror-host Ingress
A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `auth-url` Ingres
A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `auth-tls-match-c
Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.exter
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Rated critical severity (CVSS 9.9), this vulne
The Kubernetes integration in GitLab Enterprise Edition 11.x before 11.2.8, 11.3.x before 11.3.9, and 11.4.x before 11.4
Kyverno Kubernetes policy engine prior to 1.x has a privilege escalation vulnerability (CVSS 9.9) allowing policy bypass
Kamaji is the Hosted Control Plane Manager for Kubernetes. Rated critical severity (CVSS 9.9), this vulnerability is rem
Jumpserver is a popular open source bastion host, and Koko is a Jumpserver component that is the Go version of coco, ref
String filter bypass in Inspektor Gadget Kubernetes eBPF tooling before fix. Insufficient string escaping enables filter
capsule-proxy is a reverse proxy for the capsule operator project. Rated critical severity (CVSS 9.8), this vulnerabilit
Same weakness CWE-653 – Improper Isolation or Compartmentalization
View allVendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| SUSE Linux Enterprise Server 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Linux Enterprise Server 16.1 | Fixed |
| SUSE Linux Enterprise Server for SAP applications 16.1 | Fixed |
Share
External POC / Exploit Code
Leaving vuln.today