GHSA-8cr3-vpxx-92cx
HIGHGHSA-8cr3-vpxx-92cx is a high-severity (CVSS 8.8) CWE-305 vulnerability in org.keycloak:keycloak-broker-saml. O3 Security confirms whether GHSA-8cr3-vpxx-92cx is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Keycloak SAML Broken has Authentication Bypass by Primary Weakness
Blast Radius
org.keycloak:keycloak-broker-samlReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.keycloak:keycloak-broker-saml | all versions | No fix |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.keycloak:keycloak-broker-saml. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Remediation status
No patched version of org.keycloak:keycloak-broker-saml has shipped for GHSA-8cr3-vpxx-92cx yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-8cr3-vpxx-92cx is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-8cr3-vpxx-92cx. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-8cr3-vpxx-92cx in your dependencies?
O3 detects GHSA-8cr3-vpxx-92cx across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.