CVE-2025-1974
ingress-nginx admission controller RCE escalation
- Published
- Mar 24, 2025
- Updated
- Feb 26, 2026
- Assigning CNA
- kubernetes
- Evidence observed
- Jun 20, 2025
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.)
Sources
26- CVE-2025-1974Detection
A minimal test tool to help detect annotation injection vulnerabilities in Kubernetes NGINX Ingress controllers. This script sends a crafted AdmissionReview request to simulate a potential exploit path from CVE-2025-1974 and checks for signs of misinterpreted annotations in controller logs.
ingress-nginx admission controller RCE escalation PoC
Proof-of-concept exploit for CVE-2025-1974 (IngressNightmare) targeting Kubernetes Ingress-NGINX Admission Controller to achieve remote code execution via malicious AdmissionReview requests.
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.