What’s Vulnerable › Vulnerabilities

CVE-2026-93690: uri-js through 4.4.1 Denial of Service via removeDotSegments

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-18 · updated 2026-09-22
• Weakness: CWE-835

Description

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.

Affected products

• garycourt uri-js: through 4.4.1

References

• 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://github.com/garycourt/uri-js/issues/105
• https://www.npmjs.com/package/uri-js/v/4.4.1
• https://www.vulncheck.com/advisories/uri-js-through-4.4.1-denial-of-service-via-removedotsegments
• https://github.com/garycourt/uri-js/issues/105

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