Description (CNA)
Keycloak provides a feature called mTLS holder-of-key binding which ensures that a token can only be used by the client that originally requested it by binding it to their digital certificate. A flaw was discovered where the new Standard Token Exchange V2 feature does not check for this certificate. This allows an attacker with stolen client credentials to obtain a standard, unrestricted token that bypasses these security protections.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Build of Keycloak | affected |
| Red Hat / Red Hat Build of Keycloak | affected |
| Red Hat / Red Hat Single Sign-On 7 | unaffected |
CWE
CWE-287
References
- https://access.redhat.com/security/cve/CVE-2026-97846
- https://bugzilla.redhat.com/show_bug.cgi?id=2540949
ADP enrichment
No English description supplied.
No references supplied.