CVE-2025-8419 – Keycloak SMTP Injection Vulnerability

The following table lists the changes that have been made to the
CVE-2025-8419 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Aug. 06, 2025

    Action Type Old Value New Value
    Added Description A vulnerability was found in Keycloak-services. Special characters used during e-mail registration may perform SMTP Injection and unexpectedly send short unwanted e-mails. The email is limited to 64 characters (limited local part of the email), so the attack is limited to very shorts emails (subject and little data, the example is 60 chars). This flaw’s only direct consequence is an unsolicited email being sent from the Keycloak server. However, this action could be a precursor for more sophisticated attacks.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
    Added CWE CWE-93
    Added Reference https://access.redhat.com/security/cve/CVE-2025-8419
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2385776
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