CVE-2025-59303 Information disclosure in HAProxy Kubernetes Ingress Controller
Users with create/update permissions can obtain ingress token secrets via config snippets in HAProxy Kubernetes Ingress Controller.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-59303?
CVE-2025-59303 is a medium-severity vulnerability in HAProxy Kubernetes Ingress Controller, published on 8 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-791
Which versions are affected by CVE-2025-59303?
How do I fix CVE-2025-59303?
No fix has been published for CVE-2025-59303 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-59303 being exploited?
There is no known exploitation of CVE-2025-59303 in the wild and no public exploit code.
Sources
Also known as GHSA-jf49-m4qc-cf6c.