high7.5
CVE-2026-44290
protobufjs compiles protobuf definitions into JavaScript (JS) functions.
Impact
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs allowed certain schema option paths to traverse through inherited object properties while applying options. A crafted protobuf schema or JSON descriptor could cause option handling to write to properties on global JavaScript constructors, corrupting process-wide built-in functionality. This vulnerability is fixed in 7.5.6 and 8.0.2.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | protobufjs | <= 7.5.5 | 7.5.6 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Protobufjs Project | Protobufjs | before 7.5.6 from 8.0.0 before 8.0.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-jvwf-75h9-cwgg
- https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-jvwf-75h9-cwgg
- 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://nvd.nist.gov/vuln/detail/CVE-2026-44290