google-protobuf contains an unbounded recursion when parsing unknown protobuf group fields. An attacker can send a small crafted payload of deeply nested START_GROUP wire bytes to any Node.js service that calls the generated deserializeBinary() API, causing a RangeError: Maximum call stack size exceeded and crashing the process. No authentication or prior knowledge of the schema is required.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| protobuf-javascript (aka google-protobuf npm package) | unaffected |
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History
Thu, 17 Sep 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | google-protobuf contains an unbounded recursion when parsing unknown protobuf group fields. An attacker can send a small crafted payload of deeply nested START_GROUP wire bytes to any Node.js service that calls the generated deserializeBinary() API, causing a RangeError: Maximum call stack size exceeded and crashing the process. No authentication or prior knowledge of the schema is required. | |
| Title | Uncontrolled Recursion leading to Denial of Service in protobuf-javascript (google-protobuf) | |
| Weaknesses | CWE-674 | |
| References |
| |
| Metrics |
cvssV4_0
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MITRE
Status: PUBLISHED
Assigner: Google
Published:
Updated: 2026-09-17T13:27:30.163Z
Reserved: 2026-09-11T18:09:56.712Z
Link: CVE-2026-89418
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