CVE-2020-1758: Improper Certificate Validation

May 15, 2020 (updated May 19, 2020)

A flaw was found in Keycloak where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.

References

bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1758
issues.redhat.com/browse/KEYCLOAK-13285
nvd.nist.gov/vuln/detail/CVE-2020-1758

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