Vulnerability Description
UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS Core's Identity deployment. In versions 0.11.0 through 0.26.0, a logic error in the `client-kubernetes-secret` Keycloak client authenticator (shipped by `uds-identity-config` and consumed by UDS Core) causes the submitted `client_secret` to be overwritten with the mounted Kubernetes secret before comparison. An attacker who can reach the Keycloak token endpoint and knows a `client_id` using this authenticator can authenticate as that client with any `client_secret` value and obtain OAuth2 tokens scoped to the client's service account. In the case of the `uds-operator` client this token can be used to registry/modify other clients. Version 0.26.1 patches the issue.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Defenseunicorns | Uds Identity Config | >= 0.11.0, < 0.26.1 |
Related Weaknesses (CWE)
References
- https://github.com/defenseunicorns/uds-identity-config/releases/tag/v0.26.1ProductRelease Notes
- https://github.com/defenseunicorns/uds-identity-config/security/advisories/GHSA-MitigationVendor Advisory
FAQ
What is CVE-2026-46389?
CVE-2026-46389 is a vulnerability with a CVSS score of 10.0 (CRITICAL). UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS Core's Identity deployment. In versions 0.11.0 through 0.26.0, a logic error in th...
How severe is CVE-2026-46389?
CVE-2026-46389 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-46389?
Check the references section above for vendor advisories and patch information. Affected products include: Defenseunicorns Uds Identity Config.