{"id":"CVE-2015-1796","aliases":["EUVD-2022-2952","GHSA-78fq-w796-q537"],"status":"published","title":"Improper Certificate Validation in Shibboleth Identity Provider and OpenSAML","description":"The PKIX trust engines in Shibboleth Identity Provider before 2.4.4 and OpenSAML Java (OpenSAML-J) before 2.6.5 trust candidate X.509 credentials when no trusted names are available for the entityID, which allows remote attackers to impersonate an entity via a certificate issued by a shibmd:KeyAuthority trust anchor.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01247,"percentile":0.69524,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-254","CWE-295"],"published":"2015-07-08T15:00:00Z","modified":"2026-06-17T00:23:01Z","fixes":[{"ecosystem":"Maven","package":"org.opensaml:opensaml","fixed_in":["2.6.5"],"sources":["ghsa","osv"]},{"ecosystem":"Maven","package":"edu.internet2.middleware:shibboleth-identityprovider","fixed_in":["2.4.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.opensaml:opensaml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.6.4"},{"fixed":"2.6.5"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"edu.internet2.middleware:shibboleth-identityprovider","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.4.3"},{"fixed":"2.4.4"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.opensaml:opensaml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.5"}]}],"versions":["1.1","2.1.0","2.2.0","2.2.1","2.2.3","2.4.1","2.5.1","2.5.1-1","2.5.3","2.6.0","2.6.1","2.6.4"]},{"source":"osv","ecosystem":"Maven","package":"edu.internet2.middleware:shibboleth-identityprovider","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.4"}]}]}],"products":[{"vendor":"shibboleth","product":"identity_provider"},{"vendor":"shibboleth","product":"opensaml_java"}],"references":[{"url":"http://rhn.redhat.com/errata/RHSA-2015-1176.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","web"]},{"url":"https://shibboleth.net/community/advisories/secadv_20150225.txt","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","web"]},{"url":"http://rhn.redhat.com/errata/RHSA-2015-1177.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/75370","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-1796","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-78fq-w796-q537"}],"sources":{"cve":[{"id":"CVE-2015-1796","description":"The PKIX trust engines in Shibboleth Identity Provider before 2.4.4 and OpenSAML Java (OpenSAML-J) before 2.6.5 trust candidate X.509 credentials when no trusted names are available for the entityID, which allows remote attackers to impersonate an entity via a certificate issued by a shibmd:KeyAuthority trust anchor.","status":"published","published":"2015-07-08T15:00:00Z","modified":"2024-08-06T04:54:16.257Z","updated_at":"2026-11-02T14:35:43.698357Z"}],"euvd":[{"id":"EUVD-2022-2952","description":"The PKIX trust engines in Shibboleth Identity Provider before 2.4.4 and OpenSAML Java (OpenSAML-J) before 2.6.5 trust candidate X.509 credentials when no trusted names are available for the entityID, which allows remote attackers to impersonate an entity via a certificate issued by a shibmd:KeyAuthority trust anchor.","status":"published","published":"2015-07-08T15:00:00Z","modified":"2024-08-06T04:54:16Z","updated_at":"2026-11-03T02:22:13.664628Z"}],"ghsa":[{"id":"GHSA-78fq-w796-q537","title":"Improper Certificate Validation in Shibboleth Identity Provider and OpenSAML","description":"The PKIX trust engines in Shibboleth Identity Provider before 2.4.4 and OpenSAML Java (OpenSAML-J) before 2.6.5 trust candidate X.509 credentials when no trusted names are available for the entityID, which allows remote attackers to impersonate an entity via a certificate issued by a shibmd:KeyAuthority trust anchor.","status":"published","published":"2022-05-17T03:38:17Z","modified":"2023-01-27T05:02:22Z","cwes":["CWE-295"],"updated_at":"2026-11-02T14:36:17.742171Z"}],"nvd":[{"id":"CVE-2015-1796","description":"The PKIX trust engines in Shibboleth Identity Provider before 2.4.4 and OpenSAML Java (OpenSAML-J) before 2.6.5 trust candidate X.509 credentials when no trusted names are available for the entityID, which allows remote attackers to impersonate an entity via a certificate issued by a shibmd:KeyAuthority trust anchor.","status":"published","published":"2015-07-08T15:59:02.897Z","modified":"2026-06-17T00:23:01.22Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-254"],"updated_at":"2026-11-02T14:03:05.884985Z"}],"osv":[{"id":"GHSA-78fq-w796-q537","title":"Improper Certificate Validation in Shibboleth Identity Provider and OpenSAML","description":"The PKIX trust engines in Shibboleth Identity Provider before 2.4.4 and OpenSAML Java (OpenSAML-J) before 2.6.5 trust candidate X.509 credentials when no trusted names are available for the entityID, which allows remote attackers to impersonate an entity via a certificate issued by a shibmd:KeyAuthority trust anchor.","status":"published","published":"2022-05-17T03:38:17Z","modified":"2024-12-07T05:40:09.690327Z","cwes":["CWE-295"],"updated_at":"2026-11-02T15:46:40.657155Z"}]}}