Keycloak allows unrestricted admin use of system and environment variables
GHSA-f4v7-3mww-9gc2 · CVE-2024-11736
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Description
A security vulnerability has been identified that allows admin users to access sensitive server environment variables and system properties through user-configurable URLs. Specifically, 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.
References
- WEB https://github.com/keycloak/keycloak/security/advisories/GHSA-f4v7-3mww-9gc2
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-11736
- WEB https://github.com/keycloak/keycloak/commit/7a76858fe4aa39a39fb6b86dd3d2c113d9c59854
- WEB https://access.redhat.com/errata/RHSA-2025:0299
- WEB https://access.redhat.com/errata/RHSA-2025:0300
- WEB https://access.redhat.com/security/cve/CVE-2024-11736
- WEB https://bugzilla.redhat.com/show_bug.cgi?id=2328850
- PACKAGE https://github.com/keycloak/keycloak
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