What’s Vulnerable › Vulnerabilities

CVE-2022-25878: Prototype Pollution

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-05-27 · updated 2026-06-17
• Weakness: CWE-1321

Description

The package protobufjs before 6.11.3 are vulnerable to Prototype Pollution which can allow an attacker to add/modify properties of the Object.prototype. This vulnerability can occur in multiple ways: 1. by providing untrusted user input to util.setProperty or to ReflectionObject.setParsedOption functions 2. by parsing/loading .proto files

Affected products

• protobufjs: before 6.11.3 — fixed in 6.11.3

How to fix

Upgrade to a fixed version: protobufjs 6.11.3. Check the vendor advisory for mitigations.

References

• https://github.com/protobufjs/protobuf.js/blob/d13d5d5688052e366aa2e9169f50dfca376b32cf/src/util.js%23L176-L197
• https://github.com/protobufjs/protobuf.js/commit/b5f1391dff5515894830a6570e6d73f5511b2e8f
• https://github.com/protobufjs/protobuf.js/pull/1731
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2841507
• https://snyk.io/vuln/SNYK-JS-PROTOBUFJS-2441248
• https://github.com/protobufjs/protobuf.js/blob/d13d5d5688052e366aa2e9169f50dfca376b32cf/src/util.js%23L176-L197
• https://github.com/protobufjs/protobuf.js/commit/b5f1391dff5515894830a6570e6d73f5511b2e8f
• https://github.com/protobufjs/protobuf.js/pull/1731
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2841507
• https://snyk.io/vuln/SNYK-JS-PROTOBUFJS-2441248

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