GMS-2022-1099: Keycloak is vulnerable to IDN homograph attack

April 28, 2022

A flaw was found in keycloak, where IDN homograph attacks are possible. This flaw allows a malicious user to register a name that already exists and then tricking an admin to grant extra privileges. The highest threat from this vulnerability is to integrity.

References

github.com/advisories/GHSA-mwm4-5qwr-g9pf
github.com/keycloak/keycloak/security/advisories/GHSA-mwm4-5qwr-g9pf

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