CVE-2026-2603
EUVD-2026-1269018.03.2026, 02:16
A flaw was found in Keycloak. A remote attacker could bypass security controls by sending a valid SAML response from an external Identity Provider (IdP) to the Keycloak SAML endpoint for IdP-initiated broker logins. This allows the attacker to complete broker logins even when the SAML Identity Provider is disabled, leading to unauthorized authentication.Enginsight
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 | 26.2.14-1 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat build of Keycloak 26.2 | 26.2-16 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat build of Keycloak 26.2 | 26.2-16 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4.10-1 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-12 ≤ 𝑥 < * | ADP |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-12 ≤ 𝑥 < * | ADP |
Common Weakness Enumeration
References