VDB

CVE-2026-3009

CVE-2026-3009 PUBLISHED CVSS 8.100000381469727 HIGH

A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can reuse a previously generated login request to bypass the administrative restriction. This undermines access control enforcement and may allow unauthorized authentication through a disabled external provider.

EPSS 0.04% · 11.5th percentile

Risk Scores

CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS Score
0.04%
11.5th percentile

Affected Products

VendorProductVersions
Red HatRed Hat JBoss Enterprise Application Platform Expansion Pack
redhatbuild_of_keycloak26.4, 26.4, 26.4.10
Red HatRed Hat build of Keycloak 26.426.4-12, 26.4-12, 26.4-12
redhatjboss_enterprise_application_platform_expansion_pack
Red HatRed Hat build of Keycloak 26.4.10
redhatsingle_sign-on7.0, 7.0, 7.0
Red HatRed Hat JBoss Enterprise Application Platform 8
redhatjboss_enterprise_application_platform8.0, 8.0, 8.0
Mavenorg.keycloak:keycloak-services0, 0, 0
Red HatRed Hat build of Keycloak 26.426.4.10-1, 26.4.10-1, 26.4.10-1
Red HatRed Hat Single Sign-On 7
Red HatRed Hat build of Keycloak 26.426.4-12, 26.4-12, 26.4-12

Exploit Intelligence

Timeline

  • Mar 5, 2026 CVE Published
  • Mar 5, 2026 PoC Published
  • Mar 6, 2026 CVE Updated
  • Mar 6, 2026 EPSS Score
  • Mar 6, 2026 Distribution Patch
  • Mar 6, 2026 Distribution Patch
  • Mar 6, 2026 Security Advisory
  • Mar 6, 2026 Security Advisory
  • Mar 7, 2026 EPSS Score
  • Mar 8, 2026 EPSS Score
  • Mar 10, 2026 EPSS Score
  • Mar 11, 2026 EPSS Score

References

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