Sentry Next.js vulnerable to SSRF via Next.js SDK tunnel endpoint
Impact
An unsanitized input of Next.js SDK tunnel endpoint allows sending HTTP requests to arbitrary URLs and reflecting the response back to the user. This could open door for other attack vectors:
- client-side vulnerabilities: XSS/CSRF in the context of the trusted domain;
- interaction with internal network;
- read cloud metadata endpoints (AWS, Azure, Google Cloud, etc.);
- local/remote port scan.
This issue only affects users who have Next.js SDK tunneling feature enabled.
Patches
The problem has been fixed in sentry/nextjs@7.77.0
Workarounds
Disable tunneling by removing the tunnelRoute option from Sentry Next.js SDK config — next.config.js or next.config.mjs.
References
Credits
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @sentry/nextjs | >= 7.26.0, < 7.77.0 | 7.77.0 |
References
- https://github.com/getsentry/sentry-javascript/security/advisories/GHSA-2rmr-xw8m-22q9
- https://nvd.nist.gov/vuln/detail/CVE-2023-46729
- https://github.com/getsentry/sentry-javascript/pull/9415
- https://github.com/getsentry/sentry-javascript/commit/ddbda3c02c35aba8c5235e0cf07fc5bf656f81be
- https://blog.sentry.io/next-js-sdk-security-advisory-cve-2023-46729
- https://docs.sentry.io/platforms/javascript/guides/nextjs/manual-setup/#configure-tunneling-to-avoid-ad-blockers
- https://github.com/getsentry/sentry-javascript
- https://www.npmjs.com/package/@sentry/nextjs/v/7.77.0
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-918- Platform
- npm
- Package
@sentry/nextjs- Disclosed
- 09.11.2023
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-2rmr-xw8m-22q9 - CC BY 4.0
Vulnerability history: @sentry/nextjs
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 11.2023 11.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 2
- Low 1
Disclosures per year
- 2023: 1
- 2024: 0
- 2025: 2
- 2026: 0
-
Sentry Next.js vulnerable to SSRF via Next.js SDK tunnel endpoint this entry
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