CVE-2026-44290

HIGH

protobufjs: Process-wide denial of service through unsafe option paths

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0010
EPSS Percentile 27.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-1321
Status published
Products (5)
npm/protobufjs 0 - 7.5.6npm
npm/protobufjs 8.0.0 - 8.0.2npm
protobufjs/protobuf.js < 7.5.6
protobufjs/protobuf.js >= 8.0.0, < 8.0.2
protobufjs_project/protobufjs < 7.5.6
Published May 13, 2026
Tracked Since May 13, 2026