Uncontrolled Resource Consumption in Vercel AI Platform by Vercel
CVE-2026-8769

5.3MEDIUM

Key Information:

Vendor

Vercel
Status
Ai
Vendor
CVE Published:
17 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8769?

A vulnerability exists in Vercel AI affecting versions up to 3.0.97, specifically within the createJsonResponseHandler and createJsonErrorResponseHandler functions in the response-handler.ts file. This flaw can lead to uncontrolled resource consumption, allowing attackers to initiate an exploit remotely. The vulnerability has been publicly disclosed, and despite early notification to the vendor, there was no response regarding mitigation. Organizations using this product are advised to assess their exposure and implement necessary safeguards to prevent potential exploitation.

Affected Version(s)

ai 3.0.0

ai 3.0.1

ai 3.0.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-8769 - Proof of Concept

References

https://vuldb.com/vuln/364394
vdb-entrytechnical-description
https://vuldb.com/vuln/364394/cti
signaturepermissions-required
https://vuldb.com/submit/811406
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Eric-f (VulDB User)
VulDB CNA Team
.