Vulnerability · Published Oct 8, 2025 · Assigned by mitre

CVE-2025-59303

Medium 6.4

In plain English

A medium-severity security flaw in HAProxy Kubernetes Ingress Controller from HAProxy. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 3.1)6.4Medium

Exploit odds (30 days)0.3%top 81.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
HAProxy	HAProxy Kubernetes Ingress Controller	0 – before 3.1.13

Weakness: CWE-791 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

https://haproxy.com/blog/cve-2025-59303-haproxy-kubernetes-ingress-controller-secret-leak