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CVE-2025-59303

MEDIUM
6.4
CVSS Score
Published: October 8, 2025 at 12:00 AM UTC
Updated: October 8, 2026 at 01:10 PM UTC
1 product affected across 1 vendorKubernetes Ingress Controller

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Severity
MEDIUM6.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Kubernetes Ingress Controller· Haproxy
90%
0 ≤ v < 3.1.130
Affected range stops below 3.1.13, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: [email protected]
https://haproxy.com/blog/cve-2025-59303-haproxy-kubernetes-ingress-controller-secret-leak

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.4MEDIUMmitre
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-791

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