CVE-2021-43309
uri-template-lite Regular Expression Denial of Service
5.9
MEDIUM
CVSS 3.1
EPSS 0.33%
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.
How to fix CVE-2021-43309
To remediate CVE-2021-43309, upgrade the affected package to a fixed version below.
- npm/uri-template-lite—upgrade to 22.9.0 or later
Is CVE-2021-43309 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 22.9.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |