CVE-2026-3872
1 advisory.
Maven/org.keycloak:keycloak-services CVE-2026-3872: high 7.3
Keycloak: Redirect URI validation bypass via ..;/ path traversal in OIDC auth endpoint
Action: Upgrade org.keycloak:keycloak-services to 26.5.7 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 26.5.7 | - |
Fixed versions
| 26.5.7 |
Sources
- osv: GHSA-cjm2-j6cm-6p6m
- https://nvd.nist.gov/vuln/detail/CVE-2026-3872
- https://github.com/keycloak/keycloak/issues/47718
- https://github.com/keycloak/keycloak/commit/35a71b00bc856ac402711130f60190d3a24795e7
- https://access.redhat.com/errata/RHSA-2026:6475
- https://access.redhat.com/errata/RHSA-2026:6476
- https://access.redhat.com/errata/RHSA-2026:6477
- https://access.redhat.com/errata/RHSA-2026:6478
- https://access.redhat.com/security/cve/CVE-2026-3872
- https://bugzilla.redhat.com/show_bug.cgi?id=2445988
- https://github.com/keycloak/keycloak
CVE-2026-3872 · published · modified · JSON