CVE-2021-23440
CVSS v3
9.8
CRITICAL
EPSS Score
2.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
This affects the package set-value before <2.0.1, >=3.0.0 <4.0.1. A type confusion vulnerability can lead to a bypass of CVE-2019-10747 when the user-provided keys used in the path parameter are arrays.
Technical details
- Published
- 2021-09-12
Frequently asked questions
What is CVE-2021-23440?
This affects the package set-value before <2.0.1, >=3.0.0 <4.0.1. A type confusion vulnerability can lead to a bypass of CVE-2019-10747 when the user-provided keys used in the path parameter are arrays.
Is CVE-2021-23440 actively exploited?
Active exploitation of CVE-2021-23440 has not been confirmed. Its EPSS score was 2.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-23440?
CVE-2021-23440 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-23440 affecting your environment?
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