What’s Vulnerable › Vulnerabilities

CVE-2024-11736: Org.keycloak:keycloak-quarkus-server: unrestricted admin use of system and environment variables

• Severity: medium (CVSS 4.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-01-14 · updated 2026-08-31
• Weakness: CWE-526

Description

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.

Affected products

• Red Hat build of Keycloak 26.4: all versions — fixed in 26.0-7, 26.0-8, 26.0.8-1

How to fix

Upgrade to a fixed version: Red Hat build of Keycloak 26.4 26.0-7, 26.0-8, 26.0.8-1. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/errata/RHSA-2025:0299
• https://access.redhat.com/errata/RHSA-2025:0300
• https://access.redhat.com/security/cve/CVE-2024-11736
• https://bugzilla.redhat.com/show_bug.cgi?id=2328850

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