{"id":"CVE-2020-9321","aliases":["EUVD-2021-2004","GHSA-7h6j-2268-fhcm","GO-2022-0808"],"status":"published","title":"Traefik has an Improper Certificate Handling issue","description":"configurationwatcher.go in Traefik 2.x before 2.1.4 and TraefikEE 2.0.0 mishandles the purging of certificate contents from providers before logging.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00739,"percentile":0.55017,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200","CWE-295"],"published":"2020-03-16T18:14:29Z","modified":"2026-10-24T10:50:11Z","fixes":[{"ecosystem":"Go","package":"github.com/traefik/traefik","fixed_in":["2.1.4"],"sources":["ghsa","osv"]},{"ecosystem":"Go","package":"github.com/containous/traefik/v2","fixed_in":["2.1.4"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/traefik/traefik","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.4"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/traefik/traefik","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.1.4"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/containous/traefik","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/containous/traefik/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.1.4"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/traefik/traefik","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]}],"products":[{"vendor":"traefik","product":"traefik"},{"vendor":"traefik","product":"traefik_enterprise"}],"references":[{"url":"https://github.com/containous/traefik/pull/6281","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/containous/traefik/releases/tag/v2.1.4","tags":["x_refsource_MISC","x_transferred","Release Notes","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9321","tags":["advisory"]},{"url":"https://github.com/traefik/traefik/pull/6281","tags":["web","fix"]},{"url":"https://github.com/traefik/traefik/releases/tag/v2.1.4","tags":["web"]},{"url":"https://github.com/advisories/GHSA-7h6j-2268-fhcm","tags":["advisory"]},{"url":"https://github.com/traefik/traefik","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-9321","description":"configurationwatcher.go in Traefik 2.x before 2.1.4 and TraefikEE 2.0.0 mishandles the purging of certificate contents from providers before logging.","status":"published","published":"2020-03-16T18:14:29Z","modified":"2024-08-04T10:26:16.049Z","updated_at":"2026-11-02T14:35:49.538427Z"}],"euvd":[{"id":"EUVD-2021-2004","description":"configurationwatcher.go in Traefik 2.x before 2.1.4 and TraefikEE 2.0.0 mishandles the purging of certificate contents from providers before logging.","status":"published","published":"2020-03-16T18:14:29Z","modified":"2024-08-04T10:26:16Z","updated_at":"2026-11-03T03:07:53.493042Z"}],"ghsa":[{"id":"GHSA-7h6j-2268-fhcm","title":"Traefik has an Improper Certificate Handling issue","description":"configurationwatcher.go in Traefik 2.x before 2.1.4 and TraefikEE 2.0.0 mishandles the purging of certificate contents from providers before logging.","status":"published","published":"2021-09-02T22:00:01Z","modified":"2026-03-06T22:05:57Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"cwes":["CWE-200","CWE-295"],"updated_at":"2026-11-02T14:39:32.329372Z"}],"nvd":[{"id":"CVE-2020-9321","description":"configurationwatcher.go in Traefik 2.x before 2.1.4 and TraefikEE 2.0.0 mishandles the purging of certificate contents from providers before logging.","status":"published","published":"2020-03-16T19:15:11.443Z","modified":"2026-06-17T03:27:45.047Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:05:56.580228Z"}],"osv":[{"id":"CVE-2020-9321","description":"configurationwatcher.go in Traefik 2.x before 2.1.4 and TraefikEE 2.0.0 mishandles the purging of certificate contents from providers before logging.","status":"published","published":"2020-03-16T19:15:11.443Z","modified":"2026-10-24T10:50:11.36164519Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:17.663289Z"},{"id":"GHSA-7h6j-2268-fhcm","title":"Traefik has an Improper Certificate Handling issue","description":"configurationwatcher.go in Traefik 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