CVE-2023-36665
protobufjs Prototype Pollution vulnerability
Description
protobuf.js (aka protobufjs) 6.10.0 until 6.11.4 and 7.0.0 until 7.2.4 allows Prototype Pollution, a different vulnerability than CVE-2022-25878. A user-controlled protobuf message can be used by an attacker to pollute the prototype of Object.prototype by adding and overwriting its data and functions. Exploitation can involve: (1) using the function parse to parse protobuf messages on the fly, (2) loading .proto files by using load/loadSync functions, or (3) providing untrusted input to the functions ReflectionObject.setParsedOption and util.setProperty. NOTE: this CVE Record is about `Object.constructor.prototype.<new-property> = ...;` whereas CVE-2022-25878 was about `Object.__proto__.<new-property> = ...;` instead.
How to fix CVE-2023-36665
To remediate CVE-2023-36665, upgrade the affected package to a fixed version below.
- —upgrade to 7.2.5 or later
Is CVE-2023-36665 being exploited?
Low — EPSS is 1.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 7.0.0, < 7.2.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |