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Moderate severityNVD Advisory· Published Aug 6, 2025· Updated Jan 8, 2026

Org.keycloak/keycloak-services: keycloak smtp inject vulnerability

CVE-2025-8419

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.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
org.keycloak:keycloak-servicesMaven
< 26.2.826.2.8
org.keycloak:keycloak-servicesMaven
>= 26.3.0, < 26.3.326.3.3

Affected products

5
  • Red Hat/Red Hat build of Keycloak 26.0v52 versions
    cpe:/a:redhat:build_keycloak:26.0+ 1 more
    • cpe:/a:redhat:build_keycloak:26.0
    • cpe:/a:redhat:build_keycloak:26.0::el9range: 26.0-19
  • Red Hat/Red Hat build of Keycloak 26.2v52 versions
    cpe:/a:redhat:build_keycloak:26.2+ 1 more
    • cpe:/a:redhat:build_keycloak:26.2
    • cpe:/a:redhat:build_keycloak:26.2::el9range: 26.2-8
  • Keycloak/Keycloakv5
    Range: 0

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

9

News mentions

0

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