{"id":"CVE-2022-21195","aliases":["EUVD-2022-4139","GHSA-hg3w-7hj9-m3f7"],"status":"published","title":"Regular Expression Denial of Service (ReDoS)","description":"All versions of package url-regex are vulnerable to Regular Expression Denial of Service (ReDoS) which can cause the CPU usage to crash.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01361,"percentile":0.72151,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1333"],"published":"2022-05-20T20:00:14Z","modified":"2026-06-17T04:25:43Z","affected":[{"source":"ghsa","ecosystem":"PyPI","package":"url-regex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.0.4"}]}]},{"source":"osv","ecosystem":"PyPI","package":"url-regex","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.0.4"}]}]}],"products":[{"vendor":"url-regex_project","product":"url-regex"}],"references":[{"url":"https://snyk.io/vuln/SNYK-PYTHON-URLREGEX-2347643","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web"]},{"url":"https://github.com/AlexFlipnote/url_regex/blob/master/url_regex/url_regex.py","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21195","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-hg3w-7hj9-m3f7"},{"url":"https://github.com/AlexFlipnote/url_regex","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2022-21195","title":"Regular Expression Denial of Service (ReDoS)","description":"All versions of package url-regex are vulnerable to Regular Expression Denial of Service (ReDoS) which can cause the CPU usage to crash.","status":"published","published":"2022-05-20T20:00:14.033Z","modified":"2024-09-16T20:47:32.328Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:34:29.478363Z"}],"euvd":[{"id":"EUVD-2022-4139","description":"All versions of package url-regex are vulnerable to Regular Expression Denial of Service (ReDoS) which can cause the CPU usage to crash.","status":"published","published":"2022-05-20T20:00:14Z","modified":"2024-09-16T20:47:32Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T00:55:10.854479Z"}],"ghsa":[{"id":"GHSA-hg3w-7hj9-m3f7","title":"Regular expression denial of service in url_regex","description":"All versions of package url-regex are vulnerable to Regular Expression Denial of Service (ReDoS) which can cause the CPU usage to crash.","status":"published","published":"2022-05-21T00:00:25Z","modified":"2023-01-27T05:01:48Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:36:16.28305Z"}],"nvd":[{"id":"CVE-2022-21195","description":"All versions of package url-regex are vulnerable to Regular Expression Denial of Service (ReDoS) which can cause the CPU usage to crash.","status":"published","published":"2022-05-20T20:15:09.827Z","modified":"2026-06-17T04:25:43.26Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:07:20.264424Z"}],"osv":[{"id":"GHSA-hg3w-7hj9-m3f7","title":"Regular expression denial of service in url_regex","description":"All versions of package url-regex are vulnerable to Regular Expression Denial of Service (ReDoS) which can cause the CPU usage to crash.","status":"published","published":"2022-05-21T00:00:25Z","modified":"2026-03-13T21:56:30.037527Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T15:46:48.920784Z"}]}}