CVE-2025-1974

Published Mar 25, 2025

Last updated 3 months ago

CVSS critical 9.8

IngressNightmare

Kubernetes

NGINX

Overview

AI description

Automated description summarized from trusted sources.

CVE-2025-1974 is a vulnerability within the Ingress NGINX Controller for Kubernetes, specifically affecting the admission controller component. This flaw falls under a group of vulnerabilities collectively known as "IngressNightmare." The vulnerability arises because the admission controllers are accessible over the network without authentication. By sending a malicious ingress object directly to the admission controller, an attacker can inject arbitrary NGINX configurations. This results in code execution on the Ingress NGINX Controller's pod, potentially granting unauthorized access to all secrets stored across all namespaces in the Kubernetes cluster, which could lead to a complete cluster takeover.

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.)
Source: jordan@liggitt.net
NVD status: Awaiting Analysis

Risk scores

CVSS 3.1

Type: Secondary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

jordan@liggitt.net: CWE-653

Hype score: Not currently trending

References