CVE-2026-44289
Published:May 13, 2026
Updated:May 16, 2026
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs could recurse without a depth limit while decoding nested protobuf data. This affected both skipping unknown group fields and generated decoding of nested message fields. A crafted protobuf binary payload could cause the JavaScript call stack to be exhausted during decoding. This vulnerability is fixed in 7.5.6 and 8.0.2.
Affected Packages
protobufjs (CDN_JS):
Affected version(s) =8.0.0-experimental <8.0.2Fix Suggestion:
Update to version 8.0.2protobufjs (CDN_JS):
Affected version(s) >=6.10.3 <7.5.6Fix Suggestion:
Update to version 7.5.6https://github.com/protobufjs/protobuf.js.git (GITHUB):
Affected version(s) >=protobufjs-v7.0.0 <protobufjs-v7.5.6Fix Suggestion:
Update to version protobufjs-v7.5.6https://github.com/protobufjs/protobuf.js.git (GITHUB):
Affected version(s) >=protobufjs-v8.0.0 <protobufjs-v8.0.2Fix Suggestion:
Update to version protobufjs-v8.0.2protobufjs (NPM):
Affected version(s) >=0.0.0 <7.5.6Fix Suggestion:
Update to version 7.5.6protobufjs (NPM):
Affected version(s) >=8.0.0 <8.0.2Fix Suggestion:
Update to version 8.0.2protobufjs (NPM):
Affected version(s) >=8.0.0 <8.0.2Fix Suggestion:
Update to version 8.0.2Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Uncontrolled Recursion
EPSS
Base Score:
0.04