Critical severity · published Nov 3, 2021
CVE-2021-23509
This affects the package json-ptr before 3.0.0
9.8
CVSS
1.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JS
Json-ptr · Json-ptr Project
before 3.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-23509
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-23509
Broken Link
https://github.com/flitbit/json-ptr%23security-vulnerabilities-resolved
Patch
https://github.com/flitbit/json-ptr/commit/5dc458fbad1c382a2e3ca6d62e66ede3d92849ca
Patch
https://github.com/flitbit/json-ptr/pull/42
Exploit
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1767165
Exploit
https://snyk.io/vuln/SNYK-JS-JSONPTR-1577291
More from Json-ptr
9.8
CVE-2020-7766
This affects all versions of package json-ptr