CVE-2026-93690: garycourt uri-js · Infinite Loop
Affects garycourt uri-jsSource CVE Database V5
Not known to be exploited · CVSS 8.7 High.
Data as of 1 Nov 2026, 22:58 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 18 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| garycourturi-js | Affected
| Fixed in– |
npmuri-jspkg:npm/uri-jsOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, avoid processing untrusted input containing Unicode line or paragraph separators in path segments with uri-js functions that invoke removeDotSegments, especially when IRI handling is enabled.
Description
CVE-2026-93690 is a denial of service vulnerability in the uri-js library (versions up to 4.4.1) caused by an infinite loop in the removeDotSegments function. This occurs when a path segment starts with Unicode line or paragraph separators, leading to indefinite blocking of the Node.js event loop and eventual heap exhaustion. The vulnerability can be triggered by calling removeDotSegments directly or indirectly via normalize or resolve functions with IRI handling enabled.
References
- github.com/garycourt/uri-js/issues/105 (opens in a new tab)
- github.com/garycourt/uri-js (opens in a new tab)
- github.com/garycourt/uri-js/blob/4.4.0/src/uri.ts (opens in a new tab)
- github.com/garycourt/uri-js/blob/4.4.0/src/uri.ts (opens in a new tab)
- npmjs.com/package/uri-js/v/4.4.1 (opens in a new tab)
- vulncheck.com/advisories/uri-js-through-4.4.1-denial-of-service-via-removedotsegments (opens in a new tab)