AIKIDO-2026-834673
google-protobuf is vulnerable to Denial of Service (DoS)
87
High Risk
This Affects:
google-protobufTL;DR
BinaryReader.skipGroup() and BinaryReader.skipField() recurse into each other with no depth limit when skipping unknown protobuf group fields. A small payload of nested START_GROUP wire bytes reaching generated deserializeBinary() exhausts the JavaScript call stack with RangeError: Maximum call stack size exceeded and crashes the process. The fix caps group nesting depth during binary deserialization.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and your application deserializes untrusted protobuf bytes.
Background info
google-protobuf is vulnerable to Denial of Service (DoS) in versions 1.0.0 - 4.0.2.
How to fix this
Upgrade the google-protobuf library to the patch version.
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