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CVE-2026-114139— Sentry-Javascript: Middleware Bypass when using Tunnel route

Quick assessment

Affected
getsentry sentry-javascript
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.

Sentry-Javascript 是 Sentry 官方提供的 JavaScript SDK。在版本 9.36.0 至 9.47.2、10.75.2 以及 11.0.0-rc.1 中，@sentry/nextjs 的 Webpack 集成会为配置了 tunnelRoute 的所有请求路径跳过应用中间件；而隧道重写（tunnel rewrite）仅针对精确匹配隧道路径且携带有效 o 和 p 查询参数的请求生效。当应用路由与隧道路径直接冲突，或根动态段（root dynamic segment）解析后落入该隧道路径之

CVSS 9.1 · Critical
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I. Basic Information for CVE-2026-114139

Vulnerability Information
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Vulnerability Title
Sentry-Javascript: Middleware Bypass when using Tunnel route
Source: CVE Program / CVE List V5
Vulnerability Description
Sentry-Javascript is an official Sentry SDKs for JavaScript. From 9.36.0 until 9.47.2, 10.75.2, and 11.0.0-rc.1, the webpack integration for @sentry/nextjs skips application middleware for every request path under a configured tunnelRoute, while the tunnel rewrite serves only the exact tunnel path with valid o and p query parameters. When an application route directly collides with the tunnel path or a root dynamic segment resolves under it, an unauthenticated request can reach that route without middleware authorization. Exploitation requires tunnelRoute, a webpack build, a colliding route, and middleware being the only authorization control. This issue is fixed in versions 9.47.2, 10.75.2, and 11.0.0-rc.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
保护机制失效
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
getsentry sentry-javascript >= 9.36.0, < 9.47.2 -

II. Public POCs for CVE-2026-114139

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III. Intelligence Information for CVE-2026-114139

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Patches & Fixes for CVE-2026-114139 (6)

Vendor Advisories for CVE-2026-114139 (1)

Vendor Pages for CVE-2026-114139 (2)

IV. Related Vulnerabilities

Same product: sentry-javascript
Same vendor: getsentry
Same weakness: CWE-693

V. Comments for CVE-2026-114139

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