What is CVE-2021-23421?

CVE-2021-23421 is a medium-severity vulnerability in Merge-Change Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 5.6/10. Published 2021-08-11.

How severe is CVE-2021-23421?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Prototype Pollution in Merge-Change Project

CVE-2021-23421

All versions of package merge-change are vulnerable to Prototype Pollution via the utils.set function.

Vulnerability class: Prototype Pollution

EPSS: 0.011 (61.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Merge-change_project Merge-change
N/a Merge-change — versions 0

Weakness classification (CWE)

CWE-1321 — Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution)

References

report@snyk.io (Exploit, Third Party Advisory, x_refsource_MISC)
report@snyk.io (x_refsource_MISC, Broken Link)

Frequently asked questions

What is CVE-2021-23421?: CVE-2021-23421 is a medium-severity vulnerability in Merge-Change Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 5.6/10. Published 2021-08-11.
How severe is CVE-2021-23421?: Medium severity. CVSS v3 base score is 5.6 out of 10.