CVE-2021-43307

Public Exploit
Exponential ReDoS in semver-regex

Description

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the semver-regex npm package, when an attacker is able to supply arbitrary input to the test() method

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.44% Top 20%
Third-Party Advisory jfrog.com
Affected: semver-regex semver-regex
Published at:
Updated at:

References

Link Tags
https://research.jfrog.com/vulnerabilities/semver-regex-redos-xray-211349/ third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-43307?
CVE-2021-43307 has been scored as a medium severity vulnerability.
How to fix CVE-2021-43307?
To fix CVE-2021-43307, 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-2021-43307 being actively exploited in the wild?
It is possible that CVE-2021-43307 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-43307?
CVE-2021-43307 affects semver-regex semver-regex.
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