CVE-2021-23807
CVSS v3
9.8
CRITICAL
EPSS Score
2.7 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
This affects the package jsonpointer before 5.0.0. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix when the pointer components are arrays.
Technical details
- Published
- 2021-11-03
Frequently asked questions
What is CVE-2021-23807?
This affects the package jsonpointer before 5.0.0. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix when the pointer components are arrays.
Is CVE-2021-23807 actively exploited?
Active exploitation of CVE-2021-23807 has not been confirmed. Its EPSS score was 2.7% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-23807?
CVE-2021-23807 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-23807 affecting your environment?
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