{"id":"CVE-2022-21195","aliases":[],"url":"https://o3.security/vulnerability/CVE-2022-21195","summary":"Regular expression denial of service in url_regex","details":"All versions of package url-regex are vulnerable to Regular Expression Denial of Service (ReDoS) which can cause the CPU usage to crash.","published":"2022-05-21T00:00:25Z","modified":"2026-03-13T21:56:30.037527Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"PyPI","name":"url-regex","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21195"},{"type":"PACKAGE","url":"https://github.com/AlexFlipnote/url_regex"},{"type":"WEB","url":"https://github.com/AlexFlipnote/url_regex/blob/master/url_regex/url_regex.py"},{"type":"WEB","url":"https://snyk.io/vuln/SNYK-PYTHON-URLREGEX-2347643"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-03-13T21:56:30.037527Z"}}