Intel

AIKIDO-2026-10010

@uirouter/core is vulnerable to Regular Expression Denial of Service (ReDoS)

Regular Expression Denial of Service (ReDoS) Pre-CVE
Found by Aikido Intel before public disclosure or CVE publication.
Published Jan 6, 2026

32

Low Risk

This Affects:

JS@uirouter/core
5.0.14 - 6.1.1
Fixed in 6.1.2
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TL;DR

Affected versions of this package use inefficient regular expression patterns in the urlMatcher functions. These patterns can cause excessive backtracking, making the application vulnerable to regular expression denial of service (ReDos). An attacker can exploit this by providing specially crafted input that triggers high computational overhead, potentially leading to severe performance degradation, service outages, or denial-of-service conditions.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

@uirouter/core is vulnerable to Regular Expression Denial of Service (ReDoS) in versions 5.0.14 - 6.1.1.

How to fix this

Upgrade the @uirouter/core library to the patch version.