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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.

PUBLISHED Reserved 2026-05-05 | Published 2026-05-13 | Updated 2026-05-14 | Assigner GitHub_M




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Product status

< 7.5.6
affected

>= 8.0.0, < 8.0.2
affected

References

github.com/...buf.js/security/advisories/GHSA-jvwf-75h9-cwgg

cve.org (CVE-2026-44290)

nvd.nist.gov (CVE-2026-44290)

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