{"id":"CVE-2020-27978","aliases":["EUVD-2020-20470","GHSA-x3qc-wj2q-xv5h"],"status":"published","title":"Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw. A remote...","description":"Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw. A remote unauthenticated attacker can cause a login flow to trigger Java heap exhaustion due to the creation of objects in the Java Servlet container session.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01855,"percentile":0.79461,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400","CWE-770"],"published":"2020-10-28T14:43:54Z","modified":"2026-06-17T03:09:57Z","products":[{"vendor":"shibboleth","product":"identity_provider"}],"references":[{"url":"https://shibboleth.net/community/advisories/secadv_20191002.txt","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27978"},{"url":"https://github.com/advisories/GHSA-x3qc-wj2q-xv5h"}],"sources":{"cve":[{"id":"CVE-2020-27978","description":"Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw. A remote unauthenticated attacker can cause a login flow to trigger Java heap exhaustion due to the creation of objects in the Java Servlet container session.","status":"published","published":"2020-10-28T14:43:54Z","modified":"2024-08-04T16:25:44.145Z","updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-20470","description":"Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw. A remote unauthenticated attacker can cause a login flow to trigger Java heap exhaustion due to the creation of objects in the Java Servlet container session.","status":"published","published":"2020-10-28T14:43:54Z","modified":"2024-08-04T16:25:44Z","updated_at":"2026-11-03T03:07:10.69897Z"}],"ghsa":[{"id":"GHSA-x3qc-wj2q-xv5h","title":"Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw. A remote...","description":"Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw. A remote unauthenticated attacker can cause a login flow to trigger Java heap exhaustion due to the creation of objects in the Java Servlet container session.","status":"published","published":"2022-05-24T17:32:39Z","modified":"2023-01-29T05:04:35Z","cwes":["CWE-400","CWE-770"],"updated_at":"2026-11-02T14:45:35.654176Z"}],"nvd":[{"id":"CVE-2020-27978","description":"Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw. A remote unauthenticated attacker can cause a login flow to trigger Java heap exhaustion due to the creation of objects in the Java Servlet container session.","status":"published","published":"2020-10-28T15:15:13.817Z","modified":"2026-06-17T03:09:57.267Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:06:21.80969Z"}]}}