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

> CVE-2026-114139: Sentry-Javascript: Middleware Bypass when using Tunnel route. CVSS 9.1 (CVSS 4.0).

Canonical: https://rewindex.com/cve/CVE-2026-114139
Last updated: 2026-10-22T17:29:28Z

- Published: 2026-10-21 20:14 UTC · Updated: 2026-10-22 17:29 UTC · Assigner: GitHub\_M
- CVSS: 9.1 (CVSS 4.0) · Severity: Critical
- EPSS: 0.51%, 43th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-693

## 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.

## Affected vendors and products

- getsentry: sentry-javascript

## Tracked companies

- [Sentry](https://rewindex.com/company/sentry.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-114139)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-114139)
- [https://github.com/getsentry/sentry-javascript/commit/878b685c85dc12045e47e1932c96f5381d7ac532](https://github.com/getsentry/sentry-javascript/commit/878b685c85dc12045e47e1932c96f5381d7ac532)
- [https://github.com/getsentry/sentry-javascript/commit/c122aac4f29541eb6da494296822c91eab3cf5ae](https://github.com/getsentry/sentry-javascript/commit/c122aac4f29541eb6da494296822c91eab3cf5ae)
- [https://github.com/getsentry/sentry-javascript/commit/d525a2f6015b47384bc139c30d58e0d5435d52e5](https://github.com/getsentry/sentry-javascript/commit/d525a2f6015b47384bc139c30d58e0d5435d52e5)
- [https://github.com/getsentry/sentry-javascript/pull/24499](https://github.com/getsentry/sentry-javascript/pull/24499)
- [https://github.com/getsentry/sentry-javascript/pull/24565](https://github.com/getsentry/sentry-javascript/pull/24565)
- [https://github.com/getsentry/sentry-javascript/pull/24760](https://github.com/getsentry/sentry-javascript/pull/24760)
- [https://github.com/getsentry/sentry-javascript/releases/tag/10.75.2](https://github.com/getsentry/sentry-javascript/releases/tag/10.75.2)
- [https://github.com/getsentry/sentry-javascript/releases/tag/11.0.0-rc.1](https://github.com/getsentry/sentry-javascript/releases/tag/11.0.0-rc.1)
- [https://github.com/getsentry/sentry-javascript/releases/tag/9.47.2](https://github.com/getsentry/sentry-javascript/releases/tag/9.47.2)
- [https://github.com/getsentry/sentry-javascript/security/advisories/GHSA-mchm-gjx6-7h55](https://github.com/getsentry/sentry-javascript/security/advisories/GHSA-mchm-gjx6-7h55)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-114139 · Markdown: https://rewindex.com/cve/CVE-2026-114139.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-114139 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:13:27.512Z