{"id":"CVE-2020-5404","aliases":["EUVD-2022-1019","GHSA-gpch-h32j-gx6x"],"status":"published","title":"Authentication Leak On Redirect With Reactor Netty HttpClient","description":"The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00659,"percentile":0.51789,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-522"],"published":"2020-03-03T17:55:13Z","modified":"2026-10-24T10:30:21Z","fixes":[{"ecosystem":"Maven","package":"io.projectreactor.netty:reactor-netty-http","fixed_in":["0.9.5","0.8.16"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"io.projectreactor.netty:reactor-netty-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.9.0"},{"fixed":"0.9.5"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"io.projectreactor.netty:reactor-netty-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.8.0"},{"fixed":"0.8.16"}]}]},{"source":"osv","ecosystem":"Maven","package":"io.projectreactor.netty:reactor-netty-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.9.0"},{"fixed":"0.9.5"}]}]},{"source":"osv","ecosystem":"Maven","package":"io.projectreactor.netty:reactor-netty-http","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.8.0"},{"fixed":"0.8.16"}]}]}],"products":[{"vendor":"broadcom","product":"reactor_netty"},{"vendor":"pivotal","product":"reactor netty"},{"vendor":"vmware","product":"reactor netty"}],"references":[{"url":"https://pivotal.io/security/cve-2020-5404","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-5404","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-gpch-h32j-gx6x"}],"sources":{"cve":[{"id":"CVE-2020-5404","title":"Authentication Leak On Redirect With Reactor Netty HttpClient","description":"The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects.","status":"published","published":"2020-03-03T17:55:13.953Z","modified":"2024-09-17T01:02:01.211Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:35:47.56691Z"}],"euvd":[{"id":"EUVD-2022-1019","description":"The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects.","status":"published","published":"2020-03-03T17:55:13Z","modified":"2024-09-17T01:02:01Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T00:28:53.188643Z"}],"ghsa":[{"id":"GHSA-gpch-h32j-gx6x","title":"Insufficiently Protected Credentials in Reactor Netty","description":"The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects.","status":"published","published":"2022-02-10T20:24:17Z","modified":"2023-02-01T05:05:38Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:36:34.917834Z"}],"nvd":[{"id":"CVE-2020-5404","description":"The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects.","status":"published","published":"2020-03-03T18:15:12.157Z","modified":"2026-09-04T18:59:12.37Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N","level":"medium","assessor":"primary"},{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":4.9,"vector":"AV:N/AC:M/Au:S/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:05:54.796125Z"}],"osv":[{"id":"CVE-2020-5404","description":"The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects.","status":"published","published":"2020-03-03T18:15:12.157Z","modified":"2026-10-24T10:30:21.963846642Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:16.936975Z"},{"id":"GHSA-gpch-h32j-gx6x","title":"Insufficiently Protected Credentials in Reactor Netty","description":"The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects.","status":"published","published":"2022-02-10T20:24:17Z","modified":"2023-11-08T04:03:55.10229Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N","level":"medium"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T15:46:48.191583Z"}]}}