CVE-2026-44290— protobufjs: Process-wide denial of service through unsafe option paths
Quick assessment
Affected
protobufjs protobuf.js
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
protobuf.js是The protobuf.js Project开源的一个纯 JavaScript 实现，具有对node.js和浏览器的TypeScript支持的协议缓冲区实现。它易于使用，速度极快，并且通过.proto文件可以开箱即用！ protobuf.js 7.5.6之前版本和8.0.2之前版本存在安全漏洞，该漏洞源于允许某些模式选项路径遍历继承的对象属性，可能导致选项处理写入全局JavaScript构造函数的属性。
Possible ATT&CK Techniques 1 AI
T1195 · Supply Chain CompromiseAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| protobufjs | protobuf.js | < 7.5.6 |
affected |
>= 8.0.0, < 8.0.2 |
affected |
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I. Basic Information for CVE-2026-44290
Vulnerability Information
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Vulnerability Title
protobufjs: Process-wide denial of service through unsafe option paths
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5
Vulnerability Title
protobuf.js 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
protobuf.js是The protobuf.js Project开源的一个纯 JavaScript 实现，具有对node.js和浏览器的TypeScript支持的协议缓冲区实现。它易于使用，速度极快，并且通过.proto文件可以开箱即用！ protobuf.js 7.5.6之前版本和8.0.2之前版本存在安全漏洞，该漏洞源于允许某些模式选项路径遍历继承的对象属性，可能导致选项处理写入全局JavaScript构造函数的属性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| protobufjs | protobuf.js | < 7.5.6 | - |
|
II. Public POCs for CVE-2026-44290
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-44290 (1)
Same Patch Batch · protobufjs · 2026-05-13 · 10 CVEs total
| CVE-2026-44295 | 8.7 HIGH | protobufjs-cli: Code injection in pbjs static output from crafted schema names |
| CVE-2026-44291 | 8.1 HIGH | protobufjs: Code generation gadget after prototype pollution |
| CVE-2026-42290 | 7.8 HIGH | protobufjs-cli: OS Command Injection |
| CVE-2026-44293 | 7.7 HIGH | protobufjs: Code injection through bytes field defaults in generated toObject code |
| CVE-2026-44289 | 7.5 HIGH | protobufjs: Denial of service through unbounded protobuf recursion |
| CVE-2026-45740 | 5.3 MEDIUM | protobufjs: Denial of Service via unbounded recursive JSON descriptor expansion |
| CVE-2026-44288 | 5.3 MEDIUM | protobufjs: Overlong UTF-8 decoding |
| CVE-2026-44294 | 5.3 MEDIUM | protobufjs: Denial of service from crafted field names in generated code |
| CVE-2026-44292 | 5.3 MEDIUM | protobufjs: Prototype injection in generated message constructors |
IV. Related Vulnerabilities
Same product: protobuf.js
-
CVE-2026-59876
protobufjs: Text Format string map parsing can mutate return -
CVE-2026-59877
protobufjs: Denial of Service via infinite loop in .proto op -
CVE-2026-54269
protobufjs: Schema-derived names can shadow runtime-signific -
CVE-2026-48712
protobufjs: Denial of service through unbounded Any expansio -
CVE-2026-54270
protobufjs: Memory amplification from preserved unknown fiel
Same vendor: protobufjs
-
CVE-2026-59876
protobufjs: Text Format string map parsing can mutate return -
CVE-2026-59877
protobufjs: Denial of Service via infinite loop in .proto op -
CVE-2026-54269
protobufjs: Schema-derived names can shadow runtime-signific -
CVE-2026-48712
protobufjs: Denial of service through unbounded Any expansio -
CVE-2026-54270
protobufjs: Memory amplification from preserved unknown fiel
Same weakness: CWE-1321
-
CVE-2026-107301
msgpack5: Partial options disable prototype protection -
CVE-2026-107353
traverse: set() can write to built-in prototypes via an untr -
CVE-2026-106448
StableLib: Prototype poisoning via `__proto__` map keys in C -
CVE-2026-105844
Payload: Prototype pollution in Payload Import Export plugin -
CVE-2026-104852
GraphQL Tools has prototype pollution in well-established ut
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