{"id":"UBUNTU-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.","modified":"2026-05-20T16:06:27.879174303Z","published":"2021-05-24T16:15:00Z","upstream":["CVE-2021-33502"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33502"},{"type":"REPORT","url":"https://github.com/sindresorhus/normalize-url/releases/tag/v6.0.1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-33502"}],"affected":[{"package":{"name":"node-got","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/node-got?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.1.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-got","binary_version":"7.1.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33502.json"}},{"package":{"name":"node-got","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/node-got?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.1.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-got","binary_version":"7.1.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33502.json"}},{"package":{"name":"node-yarnpkg","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/node-yarnpkg?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.13.0-1build1","1.13.0-3","1.19.1-1","1.22.4-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.22.4-2","binary_name":"yarnpkg"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33502.json"}},{"package":{"name":"node-got","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/node-got?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["11.8.1+~cs53.13.17-3","11.8.2+~cs58.7.32-2","11.8.3+~cs58.7.37-1"],"ecosystem_specific":{"binaries":[{"binary_version":"11.8.3+~cs58.7.37-1","binary_name":"node-got"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33502.json"}},{"package":{"name":"node-yarnpkg","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/node-yarnpkg?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22.10+~cs22.25.14-3","1.22.10+~cs22.25.14-4","1.22.10+~cs22.25.14-5","1.22.10+~cs22.25.14-8"],"ecosystem_specific":{"binaries":[{"binary_name":"yarnpkg","binary_version":"1.22.10+~cs22.25.14-8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33502.json"}},{"package":{"name":"node-got","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/node-got?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["11.8.5+~cs58.13.36-3"],"ecosystem_specific":{"binaries":[{"binary_name":"node-got","binary_version":"11.8.5+~cs58.13.36-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33502.json"}},{"package":{"name":"node-yarnpkg","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/node-yarnpkg?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.22.19+~cs24.27.18-2","1.22.19+~cs24.27.18-4"],"ecosystem_specific":{"binaries":[{"binary_name":"yarnpkg","binary_version":"1.22.19+~cs24.27.18-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33502.json"}},{"package":{"name":"node-got","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/node-got?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["11.8.5+~cs58.13.36-5"],"ecosystem_specific":{"binaries":[{"binary_name":"node-got","binary_version":"11.8.5+~cs58.13.36-5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33502.json"}},{"package":{"name":"node-yarnpkg","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/node-yarnpkg?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.2+dfsg-3","4.1.0+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.1.0+dfsg-1","binary_name":"yarnpkg"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33502.json"}},{"package":{"name":"node-got","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/node-got?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["11.8.5+~cs58.13.36-5","11.8.5+~cs58.13.36-6"],"ecosystem_specific":{"binaries":[{"binary_name":"node-got","binary_version":"11.8.5+~cs58.13.36-6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33502.json"}},{"package":{"name":"node-yarnpkg","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/node-yarnpkg?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.0+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"yarnpkg","binary_version":"4.1.0+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33502.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}