Vulnerability details

CVE-2026-93690

garycourt uri-js

uri-js through 4.4.1 Denial of Service via removeDotSegments

CVSS 4.0

8.7High

Official 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.

CVSS scores

Score	Version	Source	Vector
8.7High	4.0	CVEProject cvelistV5 (CNA) (VulnCheck)	`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`
7.5High	3.1	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

Affected products

Vendor	Product	Versions	Source
garycourt	uri-js	v ≤ 4.4.1	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/garycourt/uri-js product
https://github.com/garycourt/uri-js/blob/4.4.0/src/uri.ts#L349 technical-description
https://github.com/garycourt/uri-js/blob/4.4.0/src/uri.ts#L352-L376 technical-description
https://www.npmjs.com/package/uri-js/v/4.4.1 product
https://www.vulncheck.com/advisories/uri-js-through-4.4.1-denial-of-service-via-removedotsegments third-party-advisory
https://github.com/garycourt/uri-js/issues/105 issue-tracking

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Details

Published: 2026-09-18
Last updated: 2026-09-24
State: Published
Assigner (CNA): VulnCheck

Exploit prediction (EPSS)

0.45%

Probability of exploitation in 30 days

39.3%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: Proof of concept
Technical impact: Partial

Weaknesses (CWE)

CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')