{"id":"UBUNTU-CVE-2026-93690","details":"uri-js through 4.4.1 contains a denial of service vulnerability in the removeDotSegments function that loops infinitely when a path segment begins with Unicode line or paragraph separators. Attackers can trigger this by calling removeDotSegments directly or through normalize/resolve functions with IRI handling enabled, causing the Node.js event loop to block indefinitely until heap exhaustion.","modified":"2026-09-21T21:40:59.097984740Z","published":"2026-09-21T00:00:00Z","upstream":["CVE-2026-93690"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-93690"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-93690"},{"type":"REPORT","url":"https://github.com/garycourt/uri-js/issues/105"},{"type":"REPORT","url":"https://github.com/garycourt/uri-js"},{"type":"REPORT","url":"https://github.com/garycourt/uri-js/blob/4.4.0/src/uri.ts#L349"},{"type":"REPORT","url":"https://github.com/garycourt/uri-js/blob/4.4.0/src/uri.ts#L352-L376"},{"type":"REPORT","url":"https://www.npmjs.com/package/uri-js/v/4.4.1"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/uri-js-through-4.4.1-denial-of-service-via-removedotsegments"}],"affected":[{"package":{"name":"node-uri-js","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/node-uri-js?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.2+dfsg-4","4.2.2+dfsg-5"],"ecosystem_specific":{"binaries":[{"binary_name":"node-uri-js","binary_version":"4.2.2+dfsg-5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-93690.json"}},{"package":{"name":"node-uri-js","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/node-uri-js?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.0+dfsg-5","4.4.0+dfsg-7"],"ecosystem_specific":{"binaries":[{"binary_name":"node-uri-js","binary_version":"4.4.0+dfsg-7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-93690.json"}},{"package":{"name":"node-uri-js","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/node-uri-js?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.0+dfsg-8"],"ecosystem_specific":{"binaries":[{"binary_name":"node-uri-js","binary_version":"4.4.0+dfsg-8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-93690.json"}},{"package":{"name":"node-uri-js","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/node-uri-js?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.0+dfsg-8","4.4.0+dfsg-9"],"ecosystem_specific":{"binaries":[{"binary_version":"4.4.0+dfsg-9","binary_name":"node-uri-js"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-93690.json"}}],"schema_version":"1.9.0","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":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}