GHSA-gvgg-2r3r-53x7
Improper Authorization in Keycloak Organization Mapper Allows Unauthorized Organization Claims
At a glance
- Published
- Updated
- CVE
- CVE-2025-1391
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Description
This vulnerability is caused by the improper mapping of users to organizations based solely on email/username patterns. The issue is limited to the token claim level, meaning the user is not truly added to the organization but may appear as such in applications relying on these claims. The risk increases in scenarios where self-registration is enabled and unrestricted, allowing an attacker to exploit the naming pattern. The issue is mitigated if admins restrict registration or use strict validation mechanisms.
Affected packages
| Package | Versions |
|---|---|
| Maven · org.keycloak:keycloak-services | introduced 26.1.0, fixed 26.1.3 |
| Maven · org.keycloak:keycloak-services | introduced 0, fixed 26.0.10 |
References
- https://github.com/keycloak/keycloak/security/advisories/GHSA-gvgg-2r3r-53x7 WEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-1391 ADVISORY
- https://github.com/keycloak/keycloak/commit/5aa2b4c75bb474303ab807017582bc01a9f7e378 WEB
- https://access.redhat.com/errata/RHSA-2025:2545 WEB
- https://access.redhat.com/security/cve/CVE-2025-1391 WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2346082 WEB
- https://github.com/keycloak/keycloak PACKAGE
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |