---
id: CVE-2025-10939
title: A flaw was found in Keycloak
summary: >-
  A flaw was found in Keycloak. The Keycloak guides recommend to not expose
  /admin path to the outside in case the installation is using a proxy. The
  issue occurs at least via ha-proxy, as it can be tricked to using
  relative/non-normalized…
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-427
published: '2025-10-28'
updated: '2026-08-04'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-10939'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2025:21370'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:21371'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2025-10939'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2398025'
    label: secalert@redhat.com
  - url: 'https://github.com/keycloak/keycloak/issues/43763'
    label: secalert@redhat.com
  - url: 'https://github.com/keycloak/keycloak/pull/43765'
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.0038
epssPercentile: 0.29254
ingestedAt: '2026-08-05T11:47:23.586Z'
---

## Overview

A flaw was found in Keycloak. The Keycloak guides recommend to not expose /admin path to the outside in case the installation is using a proxy. The issue occurs at least via ha-proxy, as it can be tricked to using relative/non-normalized paths to access the /admin application path relative to /realms which is expected to be exposed.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.