CVE-2021-23568

Public Exploit
Prototype Pollution

Description

The package extend2 before 1.0.1 are vulnerable to Prototype Pollution via the extend function due to unsafe recursive merge.

Category

7.3
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.48%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory snyk.io
Affected: n/a extend2
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315 third party advisory exploit
https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60 broken link
https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8 third party advisory patch
https://github.com/eggjs/extend2/pull/2 patch third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2021-23568?
CVE-2021-23568 has been scored as a high severity vulnerability.
How to fix CVE-2021-23568?
To fix CVE-2021-23568, 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-2021-23568 being actively exploited in the wild?
It is possible that CVE-2021-23568 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-2021-23568?
CVE-2021-23568 affects n/a extend2.
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