Sentry-Javascript: Middleware Bypass when using Tunnel route
Priority MEDIUM 48CWE-693Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-693.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0051 43rd percentileScored 2026-11-07
Fix Fixed sentry-javascript (getsentry): 9.47.2, 10.75.2, 11.0.0-rc.1@sentry/nextjs (npm): 9.47.2, 10.75.2, 11.0.0-rc.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| getsentry | sentry-javascript | 9.36.0 to before 9.47.2; 10.0.0-alpha.0 to before 10.75.2; 11.0.0-alpha.0 to before 11.0.0-rc.1 | 9.47.2, 10.75.2, 11.0.0-rc.1 | Patch available | CNA |
| — | @sentry/nextjs (npm) | 9.36.0 to before 9.47.2 | 9.47.2 | Patch available | GHSA-mchm-gjx6-7h55 |
| — | @sentry/nextjs (npm) | 10.0.0-alpha.0 to before 10.75.2 | 10.75.2 | Patch available | GHSA-mchm-gjx6-7h55 |
| — | @sentry/nextjs (npm) | 11.0.0-alpha.0 to before 11.0.0-rc.1 | 11.0.0-rc.1 | Patch available | GHSA-mchm-gjx6-7h55 |
- sentry-javascript Vendorgetsentry Affected 9.36.0 to before 9.47.2; 10.0.0-alpha.0 to before 10.75.2; 11.0.0-alpha.0 to before 11.0.0-rc.1 Fixed in 9.47.2, 10.75.2, 11.0.0-rc.1 Patch available CNA
- @sentry/nextjs (npm) Vendor— Affected 9.36.0 to before 9.47.2 Fixed in 9.47.2 Patch available GHSA-mchm-gjx6-7h55
- @sentry/nextjs (npm) Vendor— Affected 10.0.0-alpha.0 to before 10.75.2 Fixed in 10.75.2 Patch available GHSA-mchm-gjx6-7h55
- @sentry/nextjs (npm) Vendor— Affected 11.0.0-alpha.0 to before 11.0.0-rc.1 Fixed in 11.0.0-rc.1 Patch available GHSA-mchm-gjx6-7h55
Remediation
- Fix · CNA sentry-javascript (getsentry) Fixed in 9.47.2, 10.75.2, 11.0.0-rc.1
- Fix · GHSA-mchm-gjx6-7h55 @sentry/nextjs (npm) Fixed in 9.47.2 Advisory →
- Fix · GHSA-mchm-gjx6-7h55 @sentry/nextjs (npm) Fixed in 10.75.2 Advisory →
- Fix · GHSA-mchm-gjx6-7h55 @sentry/nextjs (npm) Fixed in 11.0.0-rc.1 Advisory →
Timeline
- 2026-10-21 Threatist record created from CVE-2026-114139
- 2026-10-22 Alias added: GHSA-mchm-gjx6-7h55
- 2026-10-22 Fix available: npm/@sentry/[email protected], npm/@sentry/[email protected], npm/@sentry/[email protected] · GHSA-mchm-gjx6-7h55
- 2026-10-22 CVSS score added · GHSA-mchm-gjx6-7h55
- 2026-10-22 Weakness changed · GHSA-mchm-gjx6-7h55
- 2026-10-22 12 new references · GHSA-mchm-gjx6-7h55
- 2026-10-23 Priority changed: MEDIUM → LOW
- 2026-10-25 Priority changed: LOW → MEDIUM
- 2026-10-28 CISA SSVC decision points changed
References
Other 11
- https://github.com/getsentry/sentry-javascript/security/advisories/GHSA-mchm-gjx6-7h55
- https://github.com/getsentry/sentry-javascript/pull/24499
- https://github.com/getsentry/sentry-javascript/pull/24565
- https://github.com/getsentry/sentry-javascript/pull/24760
- https://github.com/getsentry/sentry-javascript/commit/878b685c85dc12045e47e1932c96f5381d7ac532
- https://github.com/getsentry/sentry-javascript/commit/c122aac4f29541eb6da494296822c91eab3cf5ae
- https://github.com/getsentry/sentry-javascript/commit/d525a2f6015b47384bc139c30d58e0d5435d52e5
- 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/9.47.2
- https://github.com/getsentry/sentry-javascript
More getsentry vulnerabilities
- TI-2026-21018 Sentry allows unauthorized access to event data across organizational boundaries CVSS 4.0MEDIUM 5.7
- TI-2026-30656 Sentry: Improper authentication on SAML SSO process allows user identity linking CVSS 3.1CRITICAL 9.8
- TI-2025-16094 Improper authentication on SAML SSO process allows user impersonation in sentry CVSS 3.1CRITICAL 9.1
- TI-2023-25212 Sentry Next.js vulnerable to SSRF via Next.js SDK tunnel endpoint CVSS 3.1CRITICAL 9.3
- TI-2026-21634 Sentry: Improper Authentication on SAML SSO process allows user identity linking CVSS 3.1CRITICAL 9.1
- TI-2026-37904 Sentry: Inefficient Regular Expression Complexity in sentry CVSS 3.1HIGH 7.5
Sources
- CVE-2026-114139 · CVE Program
- CVE-2026-114139 · NVD
- FIRST EPSS
- GHSA-mchm-gjx6-7h55 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences