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CVE-2026-89418— Uncontrolled Recursion leading to Denial of Service in protobuf-javascript (google-protobuf)

Quick assessment

Affected
Google protobuf-javascript (aka google-protobuf npm package)
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.

google-protobuf 在解析未知的 protobuf group 字段时存在无界递归漏洞。攻击者可以向任何调用生成的 API 的 Node.js 服务发送一个包含深度嵌套的 START_GROUP 线格式（wire format）字节的特制小型载荷，从而触发 （最大调用栈大小超出）错误，导致进程崩溃。该攻击无需身份认证，也不需要对数据模式（schema）有先验知识。

CVSS 8.7 · High EPSS 0.28% · P20

Affected Version Matrix 1

VendorProduct Version RangeStatus
Google protobuf-javascript (aka google-protobuf npm package) All versions affected
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I. Basic Information for CVE-2026-89418

Vulnerability Information
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Vulnerability Title
Uncontrolled Recursion leading to Denial of Service in protobuf-javascript (google-protobuf)
Source: CVE Program / CVE List V5
Vulnerability Description
google-protobuf contains an unbounded recursion when parsing unknown protobuf group fields. An attacker can send a small crafted payload of deeply nested START_GROUP wire bytes to any Node.js service that calls the generated deserializeBinary() API, causing a RangeError: Maximum call stack size exceeded and crashing the process. No authentication or prior knowledge of the schema is required.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Google protobuf-javascript (aka google-protobuf npm package) All versions -

II. Public POCs for CVE-2026-89418

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III. Intelligence Information for CVE-2026-89418

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Vendor Advisories for CVE-2026-89418 (1)

Same Patch Batch · Google · 2026-09-17 · 17 CVEs total

CVE-2026-93372 Chrome 153前 WebGL 缓冲区溢出漏洞
CVE-2026-93374 Chrome 153 Dawn 释放后使用致代码执行
CVE-2026-93375 Chrome 153.0.8010.52 之前沙箱逃逸漏洞
CVE-2026-93382 Chrome前153.0.8010.52 PDFium释放后使用
CVE-2026-93373 Chrome 153.0.8010.52 前扩展插件释放后使用
CVE-2026-93387 Chrome 153前Skia状态验证不当致跨源数据泄露
CVE-2026-93379 Chrome 153前ORB未授权绕过站点隔离
CVE-2026-93380 Chrome 153.0.8010.52前FileSystem竞态条件漏洞
CVE-2026-93381 Chrome 153.0.8010.52 之前 PDFium 缓冲区溢出
CVE-2026-93377 Chrome 153.0.8010.52之前V8类型混淆远程代码执行
CVE-2026-93385 Chrome 153前Paint组件信息泄露漏洞
CVE-2026-93376 Chrome 153.0.8010.52 DataTransfer 越界读取
CVE-2026-93383 Chrome 153.0.8010.52 前权限跨域信息泄露
CVE-2026-93384 Chrome 153.0.8010.52 之前 SSRF 漏洞
CVE-2026-93378 Chrome 153.0.8010.52前存储缺失授权漏洞
CVE-2026-93386 Chrome 153.0.8010.52 WebAppInstalls UI欺骗漏洞

IV. Related Vulnerabilities

Same vendor: Google
Same weakness: CWE-674