{"id":"CVE-2020-8910","aliases":["EUVD-2021-1203","GHSA-vh5w-fg69-rc8m","UBUNTU-CVE-2020-8910"],"status":"published","title":"Auth Bypass in Google's Closure-Library","description":"A URL parsing issue in goog.uri of the Google Closure Library versions up to and including v20200224 allows an attacker to send malicious URLs to be parsed by the library and return the wrong authority. Mitigation: update your library to version v20200315.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00537,"percentile":0.45516,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-625"],"published":"2020-03-26T11:38:26Z","modified":"2026-10-24T10:50:23Z","fixes":[{"ecosystem":"npm","package":"google-closure-library","fixed_in":["20200315.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"google-closure-library","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"20200224.0.0"},{"fixed":"20200315.0.0"}]}]},{"source":"osv","ecosystem":"npm","package":"google-closure-library","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"20200315.0.0"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"qtwebengine-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.9.1+dfsg-4","5.9.1+dfsg-4ubuntu1","5.9.2+dfsg-2ubuntu1","5.9.3+dfsg-0ubuntu1","5.9.4+dfsg-0ubuntu1","5.9.5+dfsg-0ubuntu2","5.9.5+dfsg-0ubuntu2+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"qtwebengine-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.12.4+dfsg-1ubuntu1","5.12.4+dfsg-1ubuntu3","5.12.5+dfsg-3ubuntu1","5.12.5+dfsg-6ubuntu2","5.12.5+dfsg-7","5.12.5+dfsg-7build1","5.12.8+dfsg-0ubuntu1","5.12.8+dfsg-0ubuntu1.1","5.12.8+dfsg-0ubuntu1.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"qtwebengine-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.6+dfsg-1","5.15.6+dfsg-2","5.15.7+dfsg-2","5.15.8+dfsg-1","5.15.8+dfsg-1build1","5.15.8+dfsg-1build2","5.15.8+dfsg-2","5.15.9+dfsg-1","5.15.9+dfsg-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"qtwebengine-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.15+dfsg-2","5.15.15+dfsg-2build2","5.15.15+dfsg-2ubuntu1","5.15.16+dfsg-1","5.15.16+dfsg-1ubuntu2","5.15.16+dfsg-1ubuntu4","5.15.16+dfsg-3","5.15.16+dfsg-3ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"qtwebengine-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.18+dfsg-2","5.15.18+dfsg-2build1","5.15.19+dfsg-1","5.15.19+dfsg2-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"qtwebengine-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.19+dfsg2-4","5.15.19+dfsg2-6","5.15.19+dfsg2-7"]},{"source":"osv","ecosystem":"Ubuntu:Pro:26.04:LTS","package":"qtwebengine-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.19+dfsg2-1","5.15.19+dfsg2-1build1","5.15.19+dfsg2-2","5.15.19+dfsg2-3","5.15.19+dfsg2-4","5.15.19+dfsg2-4ubuntu0.1~esm1"]}],"products":[{"vendor":"google","product":"closure-library"},{"vendor":"google","product":"closure_library"}],"references":[{"url":"https://github.com/google/closure-library/commit/294fc00b01d248419d8f8de37580adf2a0024fc9","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/google/closure-library/releases/tag/v20200315","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8910","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vh5w-fg69-rc8m"},{"url":"https://ubuntu.com/security/CVE-2020-8910","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-8910","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-8910","title":"Auth Bypass in Google's Closure-Library","description":"A URL parsing issue in goog.uri of the Google Closure Library versions up to and including v20200224 allows an attacker to send malicious URLs to be parsed by the library and return the wrong authority. Mitigation: update your library to version v20200315.","status":"published","published":"2020-03-26T11:38:26Z","modified":"2024-08-04T10:12:10.953Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-625"],"updated_at":"2026-11-02T14:35:50.545879Z"}],"euvd":[{"id":"EUVD-2021-1203","description":"A URL parsing issue in goog.uri of the Google Closure Library versions up to and including v20200224 allows an attacker to send malicious URLs to be parsed by the library and return the wrong authority. Mitigation: update your library to version v20200315.","status":"published","published":"2020-03-26T11:38:26Z","modified":"2024-08-04T10:12:10Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T03:07:55.71159Z"}],"ghsa":[{"id":"GHSA-vh5w-fg69-rc8m","title":"Improper Input Validation in Google Closure Library","description":"A URL parsing issue in goog.uri of the Google Closure Library versions up to and including v20200224 allows an attacker to send malicious URLs to be parsed by the library and return the wrong authority. Mitigation -- update your library to version v20200315.","status":"published","published":"2021-05-07T16:06:34Z","modified":"2023-01-29T05:05:46Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:36:25.835323Z"}],"nvd":[{"id":"CVE-2020-8910","description":"A URL parsing issue in goog.uri of the Google Closure Library versions up to and including v20200224 allows an attacker to send malicious URLs to be parsed by the library and return the wrong authority. Mitigation: update your library to version v20200315.","status":"published","published":"2020-03-26T12:15:12.06Z","modified":"2026-06-17T03:27:10.21Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-625"],"updated_at":"2026-11-02T14:05:56.580228Z"}],"osv":[{"id":"CVE-2020-8910","description":"A URL parsing issue in goog.uri of the Google Closure Library versions up to and including v20200224 allows an attacker to send malicious URLs to be parsed by the library and return the wrong authority. Mitigation: update your library to version v20200315.","status":"published","published":"2020-03-26T12:15:12.06Z","modified":"2026-10-24T10:50:23.839788079Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:17.663289Z"},{"id":"GHSA-vh5w-fg69-rc8m","title":"Improper Input Validation in Google Closure Library","description":"A URL parsing issue in goog.uri of the Google Closure Library versions up to and including v20200224 allows an attacker to send malicious URLs to be parsed by the library and return the wrong authority. Mitigation -- update your library to version v20200315.","status":"published","published":"2021-05-07T16:06:34Z","modified":"2023-11-08T04:04:19.217106Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:46:57.348035Z"},{"id":"UBUNTU-CVE-2020-8910","description":"A URL parsing issue in goog.uri of the Google Closure Library versions up to and including v20200224 allows an attacker to send malicious URLs to be parsed by the library and return the wrong authority. Mitigation: update your library to version v20200315.","status":"published","published":"2020-03-26T12:15:00Z","modified":"2026-10-17T12:56:58.449315872Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:25.728622Z"}]}}