| Package | Affected versions | Patched versions |
|---|---|---|
| org.keycloak:keycloak-core | < 23.0.4 | 23.0.4 |
| single sign-on | = 7.0 |
An incomplete fix was found in Keycloak Core patch. An attacker can steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt". It is observed that changing the response_mode parameter in the original proof of concept from "form_post" to "form_post.jwt" can bypass the security patch implemented to address CVE-2023-6134.
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