CVE-2026-103387
Received Received - Intake

URI.parse Argument Manipulation in uri-js Library

Publication date: 2026-09-30

Last updated on: 2026-09-30

Assigner: VulDB

Description
A weakness has been identified in garycourt uri-js up to 4.4.1. This affects the function URI.parse of the file src/schemes/mailto.ts of the component Mailto Header Handler. This manipulation of the argument to causes uncaught exception. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

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Meta Information

Published
2026-09-30
Last Modified
2026-09-30
Generated
2026-10-01
AI Q&A
2026-09-30
EPSS Evaluated
N/A
NVD
CVE-2026-103387
EUVD
EUVD-2026-90361

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
garycourt uri-js to 4.4.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-248 An exception is thrown from a function, but it is not caught.

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Executive Summary

This vulnerability is in the garycourt uri-js library up to version 4.4.1. It involves the URI.parse function in the Mailto Header Handler component. When an argument is manipulated, it causes an uncaught exception, leading to potential remote attacks. The exploit is publicly available.

Impact Analysis

This vulnerability may allow remote attackers to cause denial-of-service conditions by triggering uncaught exceptions. Systems using affected versions of uri-js could experience crashes or instability.

Mitigation Strategies

Update the garycourt uri-js library to the latest version beyond 4.4.1 to address the uncaught exception in URI.parse. If an update is not available, consider removing or replacing the affected component (mailto.ts) until a patch is released.

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