{"id":"CVE-2021-32163","aliases":["EUVD-2023-0634","GHSA-5vx9-j5cw-47vq","GO-2023-1582"],"status":"published","title":"Privilege escalation in MOSN","description":"Authentication vulnerability in MOSN v.0.23.0 allows attacker to escalate privileges via case-sensitive JWT authorization.","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":"2026-11-12","score":0.00946,"percentile":0.61571,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-178","CWE-863"],"published":"2023-02-17T00:00:00Z","modified":"2026-10-20T10:54:41Z","fixes":[{"ecosystem":"Go","package":"mosn.io/mosn","fixed_in":["0.23.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"mosn.io/mosn","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.23.0"}]}]},{"source":"osv","ecosystem":"Go","package":"mosn.io/mosn","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.23.0"}]}]},{"source":"osv","ecosystem":"Go","package":"mosn.io/mosn","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.23.0"}]}]}],"products":[{"vendor":"linuxfoundation","product":"modular_open_smart_network"}],"references":[{"url":"https://github.com/mosn/mosn/issues/1633","tags":["x_transferred","Exploit","Issue Tracking","Vendor Advisory","report","web"]},{"url":"https://github.com/mosn/mosn/pull/1637","tags":["x_transferred","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32163","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5vx9-j5cw-47vq","tags":["advisory"]},{"url":"https://github.com/mosn/mosn","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-32163","description":"Authentication vulnerability in MOSN v.0.23.0 allows attacker to escalate privileges via case-sensitive JWT authorization.","status":"published","published":"2023-02-17T00:00:00Z","modified":"2025-03-18T19:11:25.111Z","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":"adp"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:33:07.014772Z"}],"euvd":[{"id":"EUVD-2023-0634","description":"Authentication vulnerability in MOSN v.0.23.0 allows attacker to escalate privileges via case-sensitive JWT authorization.","status":"published","published":"2023-02-17T00:00:00Z","modified":"2025-03-18T19:11:25Z","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":"2026-11-02T20:52:59.954045Z"}],"ghsa":[{"id":"GHSA-5vx9-j5cw-47vq","title":"Privilege escalation in MOSN","description":"Authentication vulnerability in MOSN before v.0.23.0 allows attacker to escalate privileges via case-sensitive JWT authorization.","status":"published","published":"2023-02-17T18:30:24Z","modified":"2023-03-01T01:35:49Z","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-178","CWE-863"],"updated_at":"2026-11-02T14:36:46.526285Z"}],"nvd":[{"id":"CVE-2021-32163","description":"Authentication vulnerability in MOSN v.0.23.0 allows attacker to escalate privileges via case-sensitive JWT authorization.","status":"published","published":"2023-02-17T18:15:10.917Z","modified":"2026-06-17T03:52:49.68Z","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":"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":"secondary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:07:07.323379Z"}],"osv":[{"id":"CVE-2021-32163","description":"Authentication vulnerability in MOSN v.0.23.0 allows attacker to escalate privileges via case-sensitive JWT authorization.","status":"published","published":"2023-02-17T18:15:10.917Z","modified":"2026-10-20T10:54:41.859230258Z","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":"2026-11-02T15:44:19.793849Z"},{"id":"GHSA-5vx9-j5cw-47vq","title":"Privilege escalation in MOSN","description":"Authentication vulnerability in MOSN before v.0.23.0 allows attacker to escalate privileges via case-sensitive JWT authorization.","status":"published","published":"2023-02-17T18:30:24Z","modified":"2024-08-20T20:58:55.220096Z","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-178","CWE-863"],"updated_at":"2026-11-02T15:46:38.911014Z"},{"id":"GO-2023-1582","title":"Privilege escalation in MOSN in mosn.io/mosn","description":"Privilege escalation in MOSN in mosn.io/mosn","status":"published","published":"2024-08-20T20:26:01Z","modified":"2026-03-03T04:53:22.427428Z","updated_at":"2026-11-02T15:47:01.185262Z"}]}}