Vulnerability in Garycourt Uri-Js
CVE-2026-93690
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.005 · change: -0.002
Affected products
Weakness classification (CWE)
References
- github.com/garycourt/uri-js/issues/105 (issue-tracking)
- github.com/garycourt/uri-js (product)
- github.com/garycourt/uri-js/blob/4.4.0/src/uri.ts (technical-description)
- github.com/garycourt/uri-js/blob/4.4.0/src/uri.ts (technical-description)
- www.npmjs.com/package/uri-js/v/4.4.1 (product)
- www.vulncheck.com/advisories/uri-js-through-4.4.1-denial-of-service-via-removed… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-93690?
- CVE-2026-93690 is a high-severity vulnerability in Garycourt Uri-Js, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2026-09-18.
- How severe is CVE-2026-93690?
- High severity. CVSS v3 base score is 7.5 out of 10.