CVE-2025-10939

LOW

Keycloak < 26.4.4 - Unauthenticated Admin Path Access via Proxy Path Normalization Bypass

Title source: llm
STIX 2.1

Description

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.

References (6)

Core 6
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:21370
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:21371
Vendor Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2025-10939
Issue Tracking issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2398025

Scores

CVSS v3 3.7
EPSS 0.0036
EPSS Percentile 27.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-427
Status published
Products (5)
Keycloak/keycloak < 26.4.4
org.keycloak/keycloak-quarkus-server 0 - 26.4.4Maven
Red Hat/Red Hat build of Keycloak 26.4 26.4-3
Red Hat/Red Hat build of Keycloak 26.4 26.4.4-1
Red Hat/Red Hat build of Keycloak 26.4.4
Published Oct 28, 2025
Tracked Since Feb 18, 2026