CVE-2026-2603
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
Description
Keycloak: Unauthorized authentication via disabled SAML Identity Provider
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.keycloak:keycloak-services | <26.5.5 | 26.5.5 |
| Maven | org.keycloak:keycloak-server-spi-private | <26.5.5 | 26.5.5 |
| MAVEN | org.keycloak:keycloak-server-spi-private | < 26.5.5 | 26.5.5 |
| MAVEN | org.keycloak:keycloak-services | < 26.5.5 | 26.5.5 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-2603
- https://github.com/keycloak/keycloak/issues/46911
- https://github.com/keycloak/keycloak/pull/46932
- https://github.com/keycloak/keycloak/commit/4fd5367e6cc28cfa68fb2240fc459c12b1fdbf2a
- https://github.com/keycloak/keycloak/commit/8ed7e59dc08d79751a27c23aadb590f06b43f132
- https://access.redhat.com/errata/RHSA-2026:3925
- https://access.redhat.com/errata/RHSA-2026:3926
- https://access.redhat.com/errata/RHSA-2026:3947
- https://access.redhat.com/errata/RHSA-2026:3948
- https://access.redhat.com/security/cve/CVE-2026-2603
- https://bugzilla.redhat.com/show_bug.cgi?id=2440300
- https://github.com/keycloak/keycloak
- https://github.com/keycloak/keycloak/commits/26.5.5
- https://github.com/advisories/GHSA-x4p7-7chp-64hq
Verify integrity in audit chain (admin only). AS-IS.