CVE-2026-114139

CRITICAL
INFO Priority: 0.05 BB Relevance: 78/100
Published: 2026-10-21 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: Present
VC: High
VI: High
VA: None

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.

Weakness Classification (1)

Affected Software (6)

VendorProductVersion
getsentry sentry-javascript >= 9.36.0, < 9.47.2
getsentry sentry-javascript >= 10.0.0-alpha.0, < 10.75.2
getsentry sentry-javascript >= 11.0.0-alpha.0, < 11.0.0-rc.1
getsentry sentry-javascript >= 9.36.0, < 9.47.2
getsentry sentry-javascript >= 10.0.0-alpha.0, < 10.75.2
getsentry sentry-javascript >= 11.0.0-alpha.0, < 11.0.0-rc.1

Bug Bounty Relevance

78 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.1 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.51%
Raw Score 0.005100
Percentile 43.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00510
2026-10-28
0.00510

Intelligence Sources

mitre ref →
nvd ref →