CVE-2026-44295
High
Description
protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.2.1 and 2.0.2, pbjs static code generation could emit unsafe JavaScript identifiers derived from schema-controlled names. When generating static JavaScript from a crafted schema or JSON descriptor, certain namespace, enum, service, or derived full names could be written into the generated output without sufficient sanitization. This vulnerability is fixed in 1.2.1 and 2.0.2.
SeverityHigh
CVSS8.7
Exploit probability—
ProductProtobufjs Project Protobufjs-cli
PublishedMay 13, 2026
First seenMay 13, 2026
Weakness typeCWE-94Code injection
How to fix
Update
- protobufjs_project protobufjs-cli1.2.1, 2.0.2 or later
- protobufjs-cli1.2.1, 2.0.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| protobufjs_project protobufjs-cli | v < 1.2.1, 2.0.0 ≤ v < 2.0.2 | 1.2.1, 2.0.2 |
| protobufjs-clinpm | v < 1.2.1, 2.0.0 ≤ v < 2.0.2 | 1.2.1, 2.0.2 |
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