Ingress Token Secret Exposure in HAProxy Kubernetes Ingress Controller
CVE-2025-59303

6.4MEDIUM

Key Information:

Vendor

Haproxy

Status
Haproxy Kubernetes Ingress Controller
Vendor
CVE Published:
8 October 2025

What is CVE-2025-59303?

The HAProxy Kubernetes Ingress Controller prior to version 3.1.13 is vulnerable due to its handling of the config-snippets feature flag. It permits users with create or update permissions to send configuration snippets that can unintentionally lead to sensitive data exposure, specifically ingress token secrets. This can be exploited if proper safeguards are not in place, allowing unauthorized access to critical tokens in the system.

Affected Version(s)

HAProxy Kubernetes Ingress Controller 0 < 3.1.13

References

https://haproxy.com/blog/cve-2025-59303-haproxy-kubernete...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-59303 : Ingress Token Secret Exposure in HAProxy Kubernetes Ingress Controller