Keycloak's identity-first login flow exposes user information

Description

References

• nvd.nist.gov/vuln/detail/CVE-2026-4633 · ADVISORY
• keycloak/keycloak · WEB
• keycloak/keycloak#47635 · WEB
• keycloak/keycloak commit b137016 · WEB
• keycloak/keycloak commit b4558a8 · WEB
• access.redhat.com/errata/RHSA-2026:19596 · WEB
• access.redhat.com/security/cve/CVE-2026-4633 · WEB
• bugzilla.redhat.com/show_bug.cgi · WEB
• keycloak/keycloak · PACKAGE

Altre vulnerabilità di org.keycloak:keycloak-services

• CVE-2026-18963CRITICO 9.1A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access manageme…
• CVE-2026-9800ALTO 8.1A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, includi…
• CVE-2026-9799MEDIO 4.6A flaw was found in org.keycloak.authorization. An authenticated user with a granted User-Managed Access (UMA) permission ticket for one res…
• CVE-2026-9705MEDIO 6.5A flaw was found in Keycloak's client registration service. A remote attacker, possessing a previously issued Registration Access Token (RAT…
• CVE-2026-9086ALTO 7.3A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with `manage-client` permission or access…