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HIGH

CVE-2021-3805

CVSS v3

7.5

HIGH

EPSS Score

2.1 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

object-path is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Technical details

Published
2021-09-17

Frequently asked questions

What is CVE-2021-3805?

object-path is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Is CVE-2021-3805 actively exploited?

Active exploitation of CVE-2021-3805 has not been confirmed. Its EPSS score was 2.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-3805?

CVE-2021-3805 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2021-3805 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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