GHSA-8cr3-vpxx-92cx

Suggest an improvement
Source
https://github.com/advisories/GHSA-8cr3-vpxx-92cx
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-8cr3-vpxx-92cx/GHSA-8cr3-vpxx-92cx.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-8cr3-vpxx-92cx
Aliases
Published
2026-03-05T21:30:48Z
Modified
2026-08-26T01:11:25Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Keycloak SAML Broken has Authentication Bypass by Primary Weakness
Details

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.

A fix is available at https://github.com/keycloak/keycloak/releases/tag/26.5.5.

Database specific 
{
    "cwe_ids":  [
        "CWE-305"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-03-06T22:32:21Z",
    "nvd_published_at":  "2026-03-05T19:16:18Z",
    "severity":  "HIGH"
}
References

Affected packages

Maven / org.keycloak:keycloak-broker-saml

Package

Name
org.keycloak:keycloak-broker-saml
View open source insights on deps.dev
Purl
pkg:maven/org.keycloak/keycloak-broker-saml

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
1.8.1.Final

Affected versions

1.*
1.2.0.Beta1
1.2.0.CR1
1.2.0.Final
1.3.0.Final
1.3.1.Final
1.4.0.Final
1.5.0-Final
1.5.0.Final
1.5.1.Final
1.6.0.Final
1.6.1.Final
1.7.0.CR1
1.7.0.Final
1.8.0.Alpha1
1.8.0.CR1
1.8.0.CR2
1.8.0.CR3
1.8.0.Final
1.8.1.Final

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-8cr3-vpxx-92cx/GHSA-8cr3-vpxx-92cx.json"