CVSS Score of 10 (low)


Published Jul 5, 2023
Updated: Mar 19, 2024
CWE ID 1321


CVE-2023-36665, also known as protobuf.js Prototype Pollution vulnerability, affects protobuf.js versions 6.10.0 through 7.x before 7.2.5. This vulnerability allows an attacker to exploit a user-controlled protobuf message and manipulate the prototype of Object.prototype by adding and overwriting data and functions. The vulnerability can be exploited by parsing protobuf messages on the fly using the parse function, loading .proto files with load/loadSync functions, or providing untrusted input to ReflectionObject.setParsedOption and util.setProperty functions. The potential danger of this vulnerability is rated as critical, with a CVSS base score of 9.8 out of 10, posing a high risk to organizations' integrity and confidentiality. To remediate this issue, users should update to version 7.2.5 or later of protobuf.js.


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