CVE-2026-3047

EUVD-2026-9864
A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 37%
Affected Products (NVD)
VendorProductVersion
redhatbuild_of_keycloak
-
redhatbuild_of_keycloak
26.2
redhatbuild_of_keycloak
26.2.14
redhatbuild_of_keycloak
26.4
redhatbuild_of_keycloak
26.4.10
redhatkeycloak
-
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
Red HatRed Hat build of Keycloak 26.2
26.2.14-1 ≤
𝑥
< *
ADP
Red HatRed Hat build of Keycloak 26.2
26.2-16 ≤
𝑥
< *
ADP
Red HatRed Hat build of Keycloak 26.2
26.2-16 ≤
𝑥
< *
ADP
Red HatRed Hat build of Keycloak 26.4
26.4.10-1 ≤
𝑥
< *
ADP
Red HatRed Hat build of Keycloak 26.4
26.4-12 ≤
𝑥
< *
ADP
Red HatRed Hat build of Keycloak 26.4
26.4-12 ≤
𝑥
< *
ADP