protobuf.js: Denial of service from crafted field names in generated code

Description

protobufjs generated JavaScript property accessors from schema-controlled field and oneof names. Certain control characters in field names were not escaped before being embedded into generated function bodies.

Recommendation

Update the protobufjs package to the latest compatible version. Followings are version details:

• Affected version(s): **>= 8.0.0, <= 8.0.1

  <= 7.5.5**

• Patched version(s): **8.0.2

  7.5.6**

References

• GHSA-2pr8-phx7-x9h3
• CVE-2026-44294
• CWE-20
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• protobuf.js: Code injection through bytes field defaults in generated toObject code - CVE-2026-44293
• protobuf.js: Denial of service through unbounded protobuf recursion - CVE-2026-44289
• protobuf.js: Process-wide denial of service through unsafe option paths - CVE-2026-44290
• Cube Core is vulnerable to Denial of Service (DoS) via crafted request - CVE-2026-25957

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How to Secure your NodeJs Express Javascript Application - part 1

How to Secure your NodeJs Express Javascript Application - part 2

10 Secure Coding Best Practices to Follow in Every Project

Tags:

npm

protobufjs