6.4

CVE-2025-59303: haproxy haproxy kubernetes ingress controller Incomplete Filtering of Special Elements

CVSS: 6.4v3.1MediumDeferred
Published 08-10-2025Last modified 08-10-2025
Open JSON

Vulnerability summary

CVE-2025-59303 is a medium (CVSS 6.4) Incomplete Filtering of Special Elements vulnerability in haproxy haproxy kubernetes ingress controller. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 16.8% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.26%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-10-2025
    PublishedVulnerability first disclosed.
  2. 08-10-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

0.00 pp

From 0.26% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.26%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Haproxy1 product

1 vendor · 1 product

References

1 links