The OIDC OP plugin before 3.0.4 for Shibboleth Identity Provider allows server-side request forgery (SSRF) due to insufficient restriction of the request_uri parameter. This allows attackers to interact with arbitrary third-party HTTP services.Referenceshttp://shibboleth.net/community/advisories/http://shibboleth.net/community/advisories/secadv_20220131.txthttps://github.com/sbaresearch/advisories/tree/public/2022/SBA-ADV-20220127-01_Shibboleth_IdP_OIDC_OP_Plugin_SSRF
