GHSA-c25h-c27q-5qpv
LOWGHSA-c25h-c27q-5qpv is a low-severity (CVSS 2.7) Incorrect Default Permissions vulnerability in org.keycloak:keycloak-ldap-federation. O3 Security confirms whether GHSA-c25h-c27q-5qpv is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Keycloak leaks configured LDAP bind credentials through the Keycloak admin console
Blast Radius
org.keycloak:keycloak-ldap-federation☕org.keycloak:keycloak-ldap-federation☕org.keycloak:keycloak-ldap-federationReal-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
Impact
The LDAP testing endpoint allows to change the Connection URL independently of and without having to re-enter the currently configured LDAP bind credentials. An attacker with admin access (permission manage-realm) can change the LDAP host URL ("Connection URL") to a machine they control. The Keycloak server will connect to the attacker's host and try to authenticate with the configured credentials, thus leaking them to the attacker. As a consequence, an attacker who has compromised the admin console/compromised a user with sufficient privileges can leak domain credentials and can now attack the domain.
Acknowledgements
Special thanks to Simon Wessling for reporting this issue and helping us improve our project
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.keycloak:keycloak-ldap-federation | ≥ 25.0.0&&< 25.0.1 | 25.0.1 |
| ☕Maven | org.keycloak:keycloak-ldap-federation | all versions | 22.0.12 |
| ☕Maven | org.keycloak:keycloak-ldap-federation | ≥ 23.0.0&&< 24.0.6 | 24.0.6 |
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-ldap-federation. 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.
Fix
Update org.keycloak:keycloak-ldap-federation to 25.0.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-c25h-c27q-5qpv is resolved across your whole dependency graph.
Workarounds
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-c25h-c27q-5qpv 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-c25h-c27q-5qpv. 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-c25h-c27q-5qpv in your dependencies?
O3 detects GHSA-c25h-c27q-5qpv across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.