What’s Vulnerable › Vulnerabilities
CVE-2023-36665
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.7% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2023-07-05 · updated 2026-06-17
- Weakness: CWE-1321
Description
"protobuf.js (aka protobufjs) 6.10.0 through 7.x before 7.2.5 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.
Affected products
- protobufjs: from 6.10.0 before 7.2.5 — fixed in 7.2.5
How to fix
Upgrade to a fixed version: protobufjs 7.2.5. Check the vendor advisory for mitigations.
References
- https://github.com/protobufjs/protobuf.js/commit/e66379f451b0393c27d87b37fa7d271619e16b0d
- https://github.com/protobufjs/protobuf.js/compare/protobufjs-v7.2.3...protobufjs-v7.2.4
- https://github.com/protobufjs/protobuf.js/pull/1899
- https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.2.4
- https://security.netapp.com/advisory/ntap-20240628-0006/
- https://www.code-intelligence.com/blog/cve-protobufjs-prototype-pollution-cve-2023-36665
- https://github.com/protobufjs/protobuf.js/commit/e66379f451b0393c27d87b37fa7d271619e16b0d
- https://github.com/protobufjs/protobuf.js/compare/protobufjs-v7.2.3...protobufjs-v7.2.4
- https://github.com/protobufjs/protobuf.js/pull/1899
- https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.2.4
- https://security.netapp.com/advisory/ntap-20240628-0006/
- https://www.code-intelligence.com/blog/cve-protobufjs-prototype-pollution-cve-2023-36665
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