What is CVE-2021-3645?

CVE-2021-3645 is a critical-severity vulnerability in Merge Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.8/10. Published 2021-09-10.

How severe is CVE-2021-3645?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Prototype Pollution in Merge Project

CVE-2021-3645

merge is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Vulnerability class: Prototype Pollution

EPSS: 0.014 (70.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Merge_project Merge
Viking04 Viking04/merge — versions unspecified

Weakness classification (CWE)

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

References

security@huntr.dev (x_refsource_CONFIRM, Exploit, Third Party Advisory)
security@huntr.dev (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-3645?: CVE-2021-3645 is a critical-severity vulnerability in Merge Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 9.8/10. Published 2021-09-10.
How severe is CVE-2021-3645?: Critical severity. CVSS v3 base score is 9.8 out of 10.