CVE-2025-57822
Next.js Improper Middleware Redirect Handling Leads to SSRF
Description
Next.js is a React framework for building full-stack web applications. Prior to versions 14.2.32 and 15.4.7, when next() was used without explicitly passing the request object, it could lead to SSRF in self-hosted applications that incorrectly forwarded user-supplied headers. This vulnerability has been fixed in Next.js versions 14.2.32 and 15.4.7. All users implementing custom middleware logic in self-hosted environments are strongly encouraged to upgrade and verify correct usage of the next() function.
INFO
Published Date :
Aug. 29, 2025, 10:15 p.m.
Last Modified :
Sept. 8, 2025, 4:41 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Upgrade Next.js to version 14.2.32 or later.
- Upgrade Next.js to version 15.4.7 or later.
- Verify correct usage of the next() function.
Public PoC/Exploit Available at Github
CVE-2025-57822 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-57822.
| URL | Resource |
|---|---|
| https://github.com/vercel/next.js/commit/9c9aaed5bb9338ef31b0517ccf0ab4414f2093d8 | Patch |
| https://github.com/vercel/next.js/security/advisories/GHSA-4342-x723-ch2f | Vendor Advisory |
| https://vercel.com/changelog/cve-2025-57822 | Mitigation Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-57822 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-57822
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-57822 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-57822 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 08, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions up to (excluding) 14.2.32 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.0.0 up to (excluding) 15.4.7 Added Reference Type GitHub, Inc.: https://github.com/vercel/next.js/commit/9c9aaed5bb9338ef31b0517ccf0ab4414f2093d8 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/vercel/next.js/security/advisories/GHSA-4342-x723-ch2f Types: Vendor Advisory Added Reference Type GitHub, Inc.: https://vercel.com/changelog/cve-2025-57822 Types: Mitigation, Vendor Advisory -
New CVE Received by [email protected]
Aug. 29, 2025
Action Type Old Value New Value Added Description Next.js is a React framework for building full-stack web applications. Prior to versions 14.2.32 and 15.4.7, when next() was used without explicitly passing the request object, it could lead to SSRF in self-hosted applications that incorrectly forwarded user-supplied headers. This vulnerability has been fixed in Next.js versions 14.2.32 and 15.4.7. All users implementing custom middleware logic in self-hosted environments are strongly encouraged to upgrade and verify correct usage of the next() function. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N Added CWE CWE-918 Added Reference https://github.com/vercel/next.js/commit/9c9aaed5bb9338ef31b0517ccf0ab4414f2093d8 Added Reference https://github.com/vercel/next.js/security/advisories/GHSA-4342-x723-ch2f Added Reference https://vercel.com/changelog/cve-2025-57822