CVE-2021-43309

Published: Aug 24, 2022Modified: Jun 17, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the uri-template-lite npm package, when an attacker is able to supply arbitrary input to the "URI.expand" method

Affected (1)

Products: Litejs: Uri Template Lite

Litejs

1 product

Uri Template Lite

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Litejs Uri Template Lite	All versions

Related CWEs

CWE-1333

Inefficient Regular Expression Complexity

The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

References (4)

https://github.com/litejs/uri-template-lite/compare/v22.1.0...v22.9.0

Source: reefs@jfrog.com

https://research.jfrog.com/vulnerabilities/uri-template-lite-redos-xray-211351/

Source: reefs@jfrog.com

ExploitThird Party Advisory

https://github.com/litejs/uri-template-lite/compare/v22.1.0...v22.9.0

Source: af854a3a-2127-422b-91ae-364da2661108

https://research.jfrog.com/vulnerabilities/uri-template-lite-redos-xray-211351/

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

Timeline

No history available yet.