Description (CNA)
A flaw was found in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, Keycloak fails to strictly enforce an encrypted connection, allowing it to fall back to unencrypted communication if the encryption request is tampered with. An attacker who can intercept network traffic can exploit this to capture sensitive email credentials and message content in plain text.
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-319
References
- https://access.redhat.com/security/cve/CVE-2026-107121
- https://bugzilla.redhat.com/show_bug.cgi?id=2547296
ADP enrichment
No English description supplied.
No references supplied.