Vulnerability Report

CVE-2024-34350

Title: Vercel Next.Js

Other

Proof Of Concept

PoC Available for CVE-2024-34350

CWE Category CWE-444
Published Date May 14, 2024
Modified Date Sep 10, 2025
Exploit Status Available
Score 7.5 CVSS v3.1
Exploit Probability (EPSS)
0.89%

Vulnerability Summary

CVE-2024-34350: Next.js is a React framework that can provide building blocks to create web applications. Prior to 13.5.1, an inconsistent interpretation of a crafted HTTP request meant that requests are treated as both a single request, and two separate requests by Next.js, leading to desynchronized responses. This led to a response queue poisoning vulnerability in the affected Next.js versions. For a request to be exploitable, the affected route also had to be making use of the [rewrites](https://nextjs.org/docs/app/api-reference/next-config-js/rewrites) feature in Next.js. The vulnerability is resolved in Next.js `13.5.1` and newer.

Impacted Vendors

Z
zeit 1
V
vercel 1
K
kanopi 1

Reference Links

https://github.com/vercel/next.js/security/advisories/GHSA-77r5-gw3j-2mpf https://github.com/vercel/next.js/security/advisories/GHSA-77r5-gw3j-2mpf
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2024-34350 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/Sudistark/rewrites-nextjs-CVE-2024-34350
View Code
MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Stack

No specific products linked.