{"id":"CVE-2018-1256","details":"Spring Cloud SSO Connector, version 2.1.2, contains a regression which disables issuer validation in resource servers that are not bound to the SSO service. In PCF deployments with multiple SSO service plans, a remote attacker can authenticate to unbound resource servers which use this version of the SSO Connector with tokens generated from another service plan.","aliases":["GHSA-q4q2-93pw-qwgf"],"modified":"2026-07-08T17:15:12.471444Z","published":"2018-05-07T16:22:00.217Z","references":[{"type":"ADVISORY","url":"https://pivotal.io/security/cve-2018-1256"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pivotal-cf/spring-cloud-sso-connector","events":[{"introduced":"9531430217eb95f9c70e1728d0213b605ffbaa2c"},{"last_affected":"9531430217eb95f9c70e1728d0213b605ffbaa2c"}],"database_specific":{"cpe":"cpe:2.3:a:vmware:spring_cloud_sso_connector:2.1.2:*:*:*:*:*:*:*","extracted_events":[{"introduced":"2.1.2"},{"last_affected":"2.1.2"}],"source":"CPE_STRING"}}],"versions":["2.1.2","2.1.2.RELEASE"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1256.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}