CVE-2026-114139: Sentry-Javascript: Middleware Bypass when using Tunnel route
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.
CWE-693
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
getsentry: sentry-javascript
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/getsentry/sentry-javascript/commit/878b685c85dc12045e47e1932c96f5381d… (opens in new tab)
- github.com/getsentry/sentry-javascript/commit/c122aac4f29541eb6da494296822c91eab… (opens in new tab)
- github.com/getsentry/sentry-javascript/commit/d525a2f6015b47384bc139c30d58e0d543… (opens in new tab)
- github.com/getsentry/sentry-javascript/pull/24499 (opens in new tab)
- github.com/getsentry/sentry-javascript/pull/24565 (opens in new tab)
- github.com/getsentry/sentry-javascript/pull/24760 (opens in new tab)
- github.com/getsentry/sentry-javascript/releases/tag/10.75.2 (opens in new tab)
- github.com/getsentry/sentry-javascript/releases/tag/11.0.0-rc.1 (opens in new tab)
- github.com/getsentry/sentry-javascript/releases/tag/9.47.2 (opens in new tab)
- github.com/getsentry/sentry-javascript/security/advisories/GHSA-mchm-gjx6-7h55 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)