Detections
Analytics

CVE-2021-23509

critical

Description

This affects the package json-ptr before 3.0.0. A type confusion vulnerability can lead to a bypass of CVE-2020-7766 when the user-provided keys used in the pointer parameter are arrays.

References

https://github.com/flitbit/json-ptr/pull/42

https://github.com/flitbit/json-ptr/commit/5dc458fbad1c382a2e3ca6d62e66ede3d92849ca

https://snyk.io/vuln/SNYK-JS-JSONPTR-1577291

https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1767165

https://github.com/flitbit/json-ptr%23security-vulnerabilities-resolved

Details

Source: Mitre, NVD

Published: 2021-11-03

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.01659