CVE-2026-44293
high
CVSS v3
8.8
CVSS v2
—
VIR risk
8.8
Description
protobuf.js: Code injection through bytes field defaults in generated toObject code
Predictions
Exploit likelihood
92%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: security-advisories@github.com — https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-66ff-xgx4-vchm
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| npm | protobufjs | <7.5.6 | 7.5.6 |
| npm | protobufjs | >=8.0.0,<8.0.2 | 8.0.2 |
| NPM | protobufjs | >= 8.0.0, <= 8.0.1 | 8.0.2 |
| NPM | protobufjs | <= 7.5.5 | 7.5.6 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| protobufjs_project | protobufjs | {"endExcluding":"7.5.6"} | 7.5.6 |
References
- https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-66ff-xgx4-vchm
- https://github.com/protobufjs/protobuf.js
- https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v7.5.6
- https://github.com/protobufjs/protobuf.js/releases/tag/protobufjs-v8.0.2
- https://github.com/advisories/GHSA-66ff-xgx4-vchm
CWEs
CWE-94
Verify integrity in audit chain (admin only). AS-IS.