CVE-2025-59303: Medium severity HAProxy Kubernetes Ingress Controller vulnerability

Published Oct 8, 2025
·
Updated

HAProxy Kubernetes Ingress Controller before 3.1.13, when the config-snippets feature flag is used, accepts config snippets from users with create/update permissions. This can result in obtaining an ingress token secret as a response. The fixed versions of HAProxy Enterprise Kubernetes Ingress Controller are 3.0.16-ee1, 1.11.13-ee1, and 1.9.15-ee1.

Affected Software

2 affected components
HAProxy Kubernetes Ingress Controller<3.1.13
HAProxy Enterprise Kubernetes Ingress Controller>=1.9.15<1.9.15-ee1, >=1.11.13<1.11.13-ee1, >=3.0.16<3.0.16-ee1

Event History

Oct 8, 2025
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·04:15 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2025-59303?

CVE-2025-59303 is considered a high-severity vulnerability due to its potential for exposing sensitive ingress token secrets.

2

How do I fix CVE-2025-59303?

To fix CVE-2025-59303, upgrade to HAProxy Kubernetes Ingress Controller version 3.1.13 or later.

3

Which versions are affected by CVE-2025-59303?

CVE-2025-59303 affects HAProxy Kubernetes Ingress Controller versions prior to 3.1.13 and specific versions of HAProxy Enterprise Kubernetes Ingress Controller.

4

What are the risks associated with CVE-2025-59303?

The risks associated with CVE-2025-59303 include unauthorized access to ingress token secrets which can compromise the security of the Kubernetes cluster.

5

Is there a workaround for CVE-2025-59303?

A temporary workaround for CVE-2025-59303 is to disable the config-snippets feature until the software can be updated.

Contact

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