{"id":"CVE-2021-20278","aliases":["EUVD-2021-1325","GHSA-ggjr-2f7v-vhq4","GO-2022-0700"],"status":"published","title":"Kiali Authentication Bypass vulnerability","description":"An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by the underlying cluster. When OpenID `implicit flow` is used with RBAC turned off, this token validation doesn't occur, and this allows a malicious user to bypass the authentication.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00763,"percentile":0.55857,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287","CWE-290"],"published":"2021-05-28T10:42:40Z","modified":"2026-10-24T10:30:53Z","fixes":[{"ecosystem":"Go","package":"github.com/kiali/kiali","fixed_in":["1.31.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/kiali/kiali","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.31.0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/kiali/kiali","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.31.0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/kiali/kiali","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.31.0"}]}]}],"products":[{"vendor":"kiali","product":"kiali"},{"vendor":"red hat","product":"kiali"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1937171","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix","web"]},{"url":"https://kiali.io/news/security-bulletins/kiali-security-002/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20278","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-ggjr-2f7v-vhq4","tags":["advisory"]},{"url":"https://kiali.io/news/security-bulletins/kiali-security-002","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2021-20278","description":"An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by the underlying cluster. When OpenID `implicit flow` is used with RBAC turned off, this token validation doesn't occur, and this allows a malicious user to bypass the authentication.","status":"published","published":"2021-05-28T10:42:40Z","modified":"2024-08-03T17:37:23.663Z","cwes":["CWE-290"],"updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-1325","description":"An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by the underlying cluster. When OpenID `implicit flow` is used with RBAC turned off, this token validation doesn't occur, and this allows a malicious user to bypass the authentication.","status":"published","published":"2021-05-28T10:42:40Z","modified":"2024-08-03T17:37:23Z","updated_at":"2026-11-03T03:25:09.355483Z"}],"ghsa":[{"id":"GHSA-ggjr-2f7v-vhq4","title":"Kiali Authentication Bypass vulnerability","description":"An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by the underlying cluster. When OpenID `implicit flow` is used with RBAC turned off, this token validation doesn't occur, and this allows a malicious user to bypass the authentication.","status":"published","published":"2021-06-01T21:57:08Z","modified":"2023-01-30T05:02:56Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-287","CWE-290"],"updated_at":"2026-11-02T14:36:27.500048Z"}],"nvd":[{"id":"CVE-2021-20278","description":"An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by the underlying cluster. When OpenID `implicit flow` is used with RBAC turned off, this token validation doesn't occur, and this allows a malicious user to bypass the authentication.","status":"published","published":"2021-05-28T11:15:08.077Z","modified":"2026-06-17T03:33:35.703Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-290","CWE-287"],"updated_at":"2026-11-02T14:06:53.987491Z"}],"osv":[{"id":"CVE-2021-20278","description":"An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by the underlying cluster. When OpenID `implicit flow` is used with RBAC turned off, this token validation doesn't occur, and this allows a malicious user to bypass the authentication.","status":"published","published":"2021-05-28T11:15:08.077Z","modified":"2026-10-24T10:30:53.708589573Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:18.004149Z"},{"id":"GHSA-ggjr-2f7v-vhq4","title":"Kiali Authentication Bypass vulnerability","description":"An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by the underlying cluster. When OpenID `implicit flow` is used with RBAC turned off, this token validation doesn't occur, and this allows a malicious user to bypass the authentication.","status":"published","published":"2021-06-01T21:57:08Z","modified":"2024-08-21T15:41:55.789181Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-287","CWE-290"],"updated_at":"2026-11-02T15:46:47.822182Z"},{"id":"GO-2022-0700","title":"Kiali Authentication Bypass vulnerability in github.com/kiali/kiali","description":"Kiali Authentication Bypass vulnerability in github.com/kiali/kiali","status":"published","published":"2024-08-21T15:21:45Z","modified":"2026-03-03T04:50:49.720835Z","updated_at":"2026-11-02T15:47:00.918515Z"}]}}