CVE-2021-43309

Public Exploit
ReDoS in uri-template-lite URI.expand function

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

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.09%
Third-Party Advisory jfrog.com
Affected: uri-template-lite uri-template-lite
Published at:
Updated at:

References

Link Tags
https://research.jfrog.com/vulnerabilities/uri-template-lite-redos-xray-211351/ third party advisory exploit
https://github.com/litejs/uri-template-lite/compare/v22.1.0...v22.9.0

Frequently Asked Questions

What is the severity of CVE-2021-43309?
CVE-2021-43309 has been scored as a medium severity vulnerability.
How to fix CVE-2021-43309?
To fix CVE-2021-43309, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43309 being actively exploited in the wild?
It is possible that CVE-2021-43309 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-43309?
CVE-2021-43309 affects uri-template-lite uri-template-lite.
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