CVE-2026-44295

HIGH

protobufjs-cli: Code injection in pbjs static output from crafted schema names

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 8.7
EPSS 0.0003
EPSS Percentile 10.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-94
Status published
Products (5)
npm/protobufjs-cli 0 - 1.2.1npm
npm/protobufjs-cli 2.0.0 - 2.0.2npm
protobufjs/protobuf.js < 1.2.1
protobufjs/protobuf.js >= 2.0.0, < 2.0.2
protobufjs_project/protobufjs-cli < 1.2.1
Published May 13, 2026
Tracked Since May 13, 2026