{"id":"CVE-2021-33502","details":"The normalize-url package before 4.5.1, 5.x before 5.3.1, and 6.x before 6.0.1 for Node.js has a ReDoS (regular expression denial of service) issue because it has exponential performance for data: URLs.","aliases":["GHSA-px4h-xg32-q955"],"modified":"2026-02-02T04:13:42.091906Z","published":"2021-05-24T16:15:08.133Z","related":["ALSA-2021:5171","ALSA-2022:0350","ALSA-2022:6595"],"references":[{"type":"ADVISORY","url":"https://github.com/sindresorhus/normalize-url/releases/tag/v6.0.1"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210706-0001/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sindresorhus/normalize-url","events":[{"introduced":"0"},{"fixed":"305e3f22efb87505d3bc87c17c50b1ef67789acb"}]}],"versions":["1.2.1","1.3.0","v1.0.0","v1.0.1","v1.0.2","v1.1.0","v1.2.0","v1.3.1","v1.4.0","v1.4.1","v1.5.0","v1.5.1","v1.5.2","v1.5.3","v1.6.0","v1.6.1","v1.7.0","v1.8.0","v1.9.0","v1.9.1","v2.0.0","v2.0.1","v3.0.0","v3.0.1","v3.1.0","v3.2.0","v3.3.0","v4.0.0","v4.1.0","v4.2.0","v4.3.0","v4.4.0","v4.4.1","v4.5.0","v5.0.0","v5.1.0","v5.2.1","v5.3.0","v6.0.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-33502.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}