Vulnerability in Kubernetes Ingress-Nginx

CVE-2025-1974

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.)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.994 (99.9th percentile), scored .

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-1974: held from 0.995 to 0.994.

EPSS over last 30 days · oldest: 0.995 · newest: 0.994 · change: -0.001

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-1974?
CVE-2025-1974 is a critical-severity vulnerability in Kubernetes Ingress-Nginx, classified under CWE-653. CVSS score: 9.8/10. Published 2025-03-25.
How severe is CVE-2025-1974?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-1974 known to be exploited?
69 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.