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Regular Expression Denial of Service (ReDoS) in braces

Low severity GitHub Reviewed Published Jan 6, 2022 to the GitHub Advisory Database • Updated Nov 26, 2025

Package

npm braces (npm)

Affected versions

>= 2.2.0, < 2.3.1

Patched versions

2.3.1

Description

A vulnerability was found in Braces versions from v2.2.0 up to but not including v2.3.1. Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) attacks. This has been patched in version 2.3.1.

References

Published by the National Vulnerability Database Mar 30, 2021
Reviewed Mar 31, 2021
Published to the GitHub Advisory Database Jan 6, 2022
Last updated Nov 26, 2025

Severity

Low

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(59th percentile)

Weaknesses

Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Learn more on MITRE.

CVE ID

CVE-2018-1109

GHSA ID

GHSA-cwfw-4gq5-mrqx

Source code

No known source code

Credits

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