CVE-2025-1974

ingress-nginx admission controller RCE escalation

Description

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.)

Remediation

Workaround:

  • Before applying the patch, this issue can be mitigated by disabling the Validating Admission Controller functionality of ingress-nginx.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 87.03% Top 5%
Affected: kubernetes ingress-nginx
Published at:
Updated at:

References

Link Tags
https://https://github.com/kubernetes/kubernetes/issues/131009

Frequently Asked Questions

What is the severity of CVE-2025-1974?
CVE-2025-1974 has been scored as a critical severity vulnerability.
How to fix CVE-2025-1974?
As a workaround for remediating CVE-2025-1974: Before applying the patch, this issue can be mitigated by disabling the Validating Admission Controller functionality of ingress-nginx.
Is CVE-2025-1974 being actively exploited in the wild?
It is possible that CVE-2025-1974 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~87% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-1974?
CVE-2025-1974 affects kubernetes ingress-nginx.
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