SecuriTricks - CVE-2025-59303

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.

Product(s) Impacted

Vendor	Product	Versions
Haproxy	Haproxy Kubernetes Ingress Controller Haproxy Enterprise Kubernetes Ingress Controller	<3.1.13 3.0.16-ee1, 1.11.13-ee1, 1.9.15-ee1

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-791

Incomplete Filtering of Special Elements

The product receives data from an upstream component, but does not completely filter special elements before sending it to a downstream component.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	haproxy	haproxy_kubernetes_ingress_controller	<3.1.13	/	/	/	/	/	/	/
a	haproxy	haproxy_enterprise_kubernetes_ingress_controller	3.0.16-ee1	/	/	/	/	/	/	/
a	haproxy	haproxy_enterprise_kubernetes_ingress_controller	1.11.13-ee1	/	/	/	/	/	/	/
a	haproxy	haproxy_enterprise_kubernetes_ingress_controller	1.9.15-ee1	/	/	/	/	/	/	/

References

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

CVSS Score

6.4 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: LOW
Scope: CHANGED
Confidentiality Impact: LOW
Integrity Impact: LOW
Availability Impact: NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

View Vector String

Timeline

Published: Oct. 8, 2025, 4:15 p.m.
Last Modified: Oct. 8, 2025, 7:38 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

cve@mitre.org

CVE-2025-59303