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Fencer Vulns
medium 4.9

CVE-2024-11736 json

Org.keycloak:keycloak-quarkus-server: unrestricted admin use of system and environment variables

published 2025-01-13 21 mo ago modified 2026-09-10 1 mo ago also GHSA-f4v7-3mww-9gc2 , EUVD-2025-0025

cvss
4.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

A vulnerability was found in Keycloak. Admin users may have to access sensitive server environment variables and system properties through user-configurable URLs. When configuring backchannel logout URLs or admin URLs, admin users can include placeholders like ${env.VARNAME} or ${PROPNAME}. The server replaces these placeholders with the actual values of environment variables or system properties during URL processing.

Patch / fix

  • maven org.keycloak:keycloak-quarkus-server 26.0.8
  • Red Hat Red Hat build of Keycloak 26.0 26.0-7, 26.0-8, 26.0.8-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-11736 updated cvss 4.9

org.keycloak:keycloak-quarkus-server: Unrestricted admin use of system and environment variables

  • Red Hat Build of Keycloak keycloak-quarkus-server
    affected: workaround, no fix planned “Will not fix”
  • Red Hat build of Keycloak 26.0 rhbk/keycloak-rhel9 26.0-7, rhbk/keycloak-rhel9-operator 26.0-8, rhbk/keycloak-operator-bundle 26.0.8-1
    fixed: vendor fix RHSA-2025:0299
  • Red Hat RHBK 26.0.8
    fixed: vendor fix RHSA-2025:0300
  • Red Hat JBoss Enterprise Application Platform 8 keycloak-quarkus-server Red Hat JBoss Enterprise Application Platform Expansion Pack keycloak-quarkus-server
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
GitHub 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
maven org.keycloak:keycloak-quarkus-server
<26.0.8
26.0.8

Affected products

  • Red Hat Red Hat build of Keycloak 26.0
  • Red Hat RHBK 26.0.8
  • Red Hat Red Hat Build of Keycloak
  • Red Hat Red Hat JBoss Enterprise Application Platform 8
  • Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack

Classification

Weakness
  • CWE-526 Cleartext Storage of Sensitive Information in an Environment Variable

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.