Keycloak is vulnerable to IDN homograph attack
Priority LOW 38CWE-284Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-284.
Summary
A flaw was found in keycloak, where IDN homograph attacks are possible. This flaw allows a malicious user to register a name that already exists and then tricking an admin to grant extra privileges. The highest threat from this vulnerability is to integrity.
Why it matters now
Fix Fixed org.keycloak:keycloak-services (Maven): 18.0.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | org.keycloak:keycloak-services (Maven) | before 18.0.0 | 18.0.0 | Patch available | GHSA-mwm4-5qwr-g9pf |
- org.keycloak:keycloak-services (Maven) Vendor— Affected before 18.0.0 Fixed in 18.0.0 Patch available GHSA-mwm4-5qwr-g9pf
Remediation
- Fix · GHSA-mwm4-5qwr-g9pf org.keycloak:keycloak-services (Maven) Fixed in 18.0.0 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-mwm4-5qwr-g9pf
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences