CVE-2026-93690: Loop with Unreachable Exit Condition ('Infinite Loop') in garycourt uri-js
CVE-2026-93690 is a denial of service vulnerability in the uri-js library (up to version 4.4.1) caused by an infinite loop in the removeDotSegments function. The issue occurs when a path segment begins with Unicode line or paragraph separators, causing the Node.js event loop to block indefinitely until heap exhaustion. This can be triggered by calling removeDotSegments directly or indirectly via normalize or resolve functions with IRI handling enabled.
AI Analysis
Technical Summary
The uri-js library versions up to 4.4.1 contain a denial of service vulnerability due to an infinite loop in the removeDotSegments function. When a path segment starts with Unicode line or paragraph separators, the function loops indefinitely, blocking the Node.js event loop and leading to heap exhaustion. This vulnerability can be exploited by invoking removeDotSegments directly or through normalize or resolve functions when IRI handling is enabled, resulting in a denial of service condition.
Potential Impact
An attacker can cause a denial of service by triggering an infinite loop in the uri-js library, which blocks the Node.js event loop indefinitely and exhausts heap memory. This results in application unavailability or crash, impacting systems using vulnerable versions of uri-js.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-93690: Loop with Unreachable Exit Condition ('Infinite Loop') in garycourt uri-js
Description
CVE-2026-93690 is a denial of service vulnerability in the uri-js library (up to version 4.4.1) caused by an infinite loop in the removeDotSegments function. The issue occurs when a path segment begins with Unicode line or paragraph separators, causing the Node.js event loop to block indefinitely until heap exhaustion. This can be triggered by calling removeDotSegments directly or indirectly via normalize or resolve functions with IRI handling enabled.
CVSS v4.0
Score 8.7high
Affected software
garycourt
uri-js
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The uri-js library versions up to 4.4.1 contain a denial of service vulnerability due to an infinite loop in the removeDotSegments function. When a path segment starts with Unicode line or paragraph separators, the function loops indefinitely, blocking the Node.js event loop and leading to heap exhaustion. This vulnerability can be exploited by invoking removeDotSegments directly or through normalize or resolve functions when IRI handling is enabled, resulting in a denial of service condition.
Potential Impact
An attacker can cause a denial of service by triggering an infinite loop in the uri-js library, which blocks the Node.js event loop indefinitely and exhausts heap memory. This results in application unavailability or crash, impacting systems using vulnerable versions of uri-js.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-18T14:39:02.165Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aad598955bf5e2cf52e39a5
Added to database: 09/18/2026, 15:32:25 UTC
Last enriched: 09/18/2026, 15:46:29 UTC
Last updated: 09/18/2026, 17:42:45 UTC
Views: 7
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