CVE-2026-44295
protobufjs-cli: Code injection in pbjs static output from crafted schema names
CVSS Score
8.7
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-94 |
| Vendor | protobufjs |
| Product | protobuf.js |
| Published | May 13, 2026 |
| Last Updated | May 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
protobufjs / protobuf.js
>= 2.0.0, < 2.0.2 < 1.2.1