Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Protobufjs Project | Protobufjs | < 7.5.6 |
Related Weaknesses (CWE)
References
- https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-jvwf-75h9-cwgMitigationVendor Advisory
FAQ
What is CVE-2026-44290?
CVE-2026-44290 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2026-44290?
CVE-2026-44290 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44290?
Check the references section above for vendor advisories and patch information. Affected products include: Protobufjs Project Protobufjs.