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ingress-nginx controller - configuration injection via unsanitized auth-url annotation

High severity GitHub Reviewed Published Mar 25, 2025 to the GitHub Advisory Database • Updated Mar 25, 2025

Package

gomod k8s.io/ingress-nginx (Go)

Affected versions

< 1.11.5
>= 1.12.0-beta.0, < 1.12.1

Patched versions

1.11.5
1.12.1

Description

A security issue was discovered in ingress-nginx where the auth-url Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)

References

Published by the National Vulnerability Database Mar 25, 2025
Published to the GitHub Advisory Database Mar 25, 2025
Reviewed Mar 25, 2025
Last updated Mar 25, 2025

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(96th percentile)

Weaknesses

CVE ID

CVE-2025-24514

GHSA ID

GHSA-fwwp-xcxw-39vq

Source code

Credits

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