CVE-2026-93690 PUBLISHED

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.

• Wayde Shi (PayPal Cyber Security Team)

• GitHub Issue #105
• https://github.com/garycourt/uri-js
• https://github.com/garycourt/uri-js/blob/4.4.0/src/uri.ts#L349
• https://github.com/garycourt/uri-js/blob/4.4.0/src/uri.ts#L352-L376
• https://www.npmjs.com/package/uri-js/v/4.4.1
• VulnCheck Advisory: uri-js through 4.4.1 Denial of Service via removeDotSegments

• Loop with Unreachable Exit Condition ('Infinite Loop') CWE