Improper Input Validation in Keycloak
High severity
GitHub Reviewed
Published
Feb 9, 2022
to the GitHub Advisory Database
•
Updated Sep 25, 2023
Description
Published by the National Vulnerability Database
May 13, 2020
Reviewed
Apr 1, 2021
Published to the GitHub Advisory Database
Feb 9, 2022
Last updated
Sep 25, 2023
A flaw was found in Keycloak before version 11.0.0, where the code base contains usages of ObjectInputStream without type checks. This flaw allows an attacker to inject arbitrarily serialized Java Objects, which would then get deserialized in a privileged context and potentially lead to remote code execution.
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