Spring Security SAML2 Service Provider is vulnerable to Deserialization of Untrusted Data via JdbcAssertingPartyMetadataRepository

An attacker with write permissions to the database table managed by JdbcAssertingPartyMetadataRepository saml2assertingpartymetadata may be able to store malicious serialized payloads in the columns containing the collection of verification or encryption credentials verificationcredentials and...