{"id":"CVE-2021-37580","aliases":["EUVD-2021-2400","GHSA-vpfp-5gwq-g533"],"status":"published","title":"Apache ShenYu Admin bypass JWT authentication","description":"A flaw was found in Apache ShenYu Admin. The incorrect use of JWT in ShenyuAdminBootstrap allows an attacker to bypass authentication. This issue affected Apache ShenYu 2.3.0 and 2.4.0","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.4212,"percentile":0.98703,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-287"],"published":"2021-11-16T09:35:11Z","modified":"2026-10-24T10:31:00Z","exploits":[{"source":"nuclei","id":"CVE-2021-37580","title":"Apache ShenYu Admin JWT - Authentication Bypass","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-37580.yaml"},{"source":"pocgithub","id":"CN016/Apache-ShenYu-Admin-JWT-CVE-2021-37580-","title":"CN016/Apache-ShenYu-Admin-JWT-CVE-2021-37580-","date":"2023-10-10","url":"https://github.com/CN016/Apache-ShenYu-Admin-JWT-CVE-2021-37580-"},{"source":"pocgithub","id":"Liang2580/CVE-2021-37580","title":"Liang2580/CVE-2021-37580","date":"2021-11-19","url":"https://github.com/Liang2580/CVE-2021-37580"},{"source":"pocgithub","id":"Osyanina/westone-CVE-2021-37580-scanner","title":"Osyanina/westone-CVE-2021-37580-scanner","date":"2021-11-19","url":"https://github.com/Osyanina/westone-CVE-2021-37580-scanner"},{"source":"pocgithub","id":"Wing-song/CVE-2021-37580","title":"Wing-song/CVE-2021-37580","date":"2021-11-19","url":"https://github.com/Wing-song/CVE-2021-37580"},{"source":"pocgithub","id":"ZororoZ/CVE-2021-37580","title":"ZororoZ/CVE-2021-37580","date":"2021-11-19","url":"https://github.com/ZororoZ/CVE-2021-37580"},{"source":"pocgithub","id":"fengwenhua/CVE-2021-37580","title":"fengwenhua/CVE-2021-37580","date":"2021-11-17","url":"https://github.com/fengwenhua/CVE-2021-37580"},{"source":"pocgithub","id":"rabbitsafe/CVE-2021-37580","title":"rabbitsafe/CVE-2021-37580","date":"2021-11-17","url":"https://github.com/rabbitsafe/CVE-2021-37580"}],"fixes":[{"ecosystem":"Maven","package":"org.apache.shenyu:shenyu-admin","fixed_in":["2.4.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.shenyu:shenyu-admin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.3.0"},{"fixed":"2.4.1"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.shenyu:shenyu-admin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.3.0"},{"fixed":"2.4.1"}]}],"versions":["2.4.0"]}],"products":[{"vendor":"apache","product":"shenyu"},{"vendor":"apache software foundation","product":"apache shenyu admin"}],"references":[{"url":"https://lists.apache.org/thread/o15j25qwtpcw62k48xw1tnv48skh3zgb","tags":["x_refsource_MISC","x_transferred","Mailing List","Vendor Advisory","advisory","web"]},{"url":"http://www.openwall.com/lists/oss-security/2021/11/16/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-37580","tags":["advisory"]},{"url":"https://github.com/apache/shenyu/commit/f78adb26926ba53b4ec5c21f2cf7e931461d601d","tags":["web"]},{"url":"https://github.com/apache/shenyu/releases/tag/v2.4.1","tags":["web"]},{"url":"https://github.com/advisories/GHSA-vpfp-5gwq-g533"},{"url":"https://github.com/apache/shenyu","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-37580","title":"Apache ShenYu Admin bypass JWT authentication","description":"A flaw was found in Apache ShenYu Admin. The incorrect use of JWT in ShenyuAdminBootstrap allows an attacker to bypass authentication. This issue affected Apache ShenYu 2.3.0 and 2.4.0","status":"published","published":"2021-11-16T09:35:11Z","modified":"2024-08-04T01:23:01.186Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:32:58.359368Z"}],"euvd":[{"id":"EUVD-2021-2400","description":"A flaw was found in Apache ShenYu Admin. The incorrect use of JWT in ShenyuAdminBootstrap allows an attacker to bypass authentication. This issue affected Apache ShenYu 2.3.0 and 2.4.0","status":"published","published":"2021-11-16T09:35:11Z","modified":"2024-08-04T01:23:01Z","updated_at":"2026-11-03T03:24:27.254804Z"}],"ghsa":[{"id":"GHSA-vpfp-5gwq-g533","title":"Improper Authentication in Apache ShenYu Admin","description":"A flaw was found in Apache ShenYu Admin. The incorrect use of JWT in ShenyuAdminBootstrap allows an attacker to bypass authentication. This issue affected Apache ShenYu 2.3.0 and 2.4.0.","status":"published","published":"2021-11-17T23:15:30Z","modified":"2023-09-05T22:18:19Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:37:02.095916Z"}],"nvd":[{"id":"CVE-2021-37580","description":"A flaw was found in Apache ShenYu Admin. The incorrect use of JWT in ShenyuAdminBootstrap allows an attacker to bypass authentication. This issue affected Apache ShenYu 2.3.0 and 2.4.0","status":"published","published":"2021-11-16T10:15:07.22Z","modified":"2026-06-17T04:00:46.96Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:07:00.984108Z"}],"osv":[{"id":"CVE-2021-37580","description":"A flaw was found in Apache ShenYu Admin. The incorrect use of JWT in ShenyuAdminBootstrap allows an attacker to bypass authentication. This issue affected Apache ShenYu 2.3.0 and 2.4.0","status":"published","published":"2021-11-16T10:15:07.22Z","modified":"2026-10-24T10:31:00.001009732Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:20.434873Z"},{"id":"GHSA-vpfp-5gwq-g533","title":"Improper Authentication in Apache ShenYu Admin","description":"A flaw was found in Apache ShenYu Admin. The incorrect use of JWT in ShenyuAdminBootstrap allows an attacker to bypass authentication. This issue affected Apache ShenYu 2.3.0 and 2.4.0.","status":"published","published":"2021-11-17T23:15:30Z","modified":"2024-02-16T08:24:45.527587Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:46:57.694388Z"}]}}