Information Disclosure Vulnerability in ag-ui-protocol ag-ui HTTP Component
CVE-2026-120233

6.9MEDIUM

Key Information:

Vendor

Ag-ui-protocol

Status
Ag-ui
Vendor
CVE Published:
1 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-120233?

A security vulnerability exists in the ag-ui-protocol ag-ui product that affects versions up to 0.0.58. This vulnerability resides in an unknown function of the HttpAgent component, specifically within the file sdks/typescript/packages/client/src/agent/http.ts. When exploited, it can lead to unauthorized information disclosure, enabling malicious actors to access sensitive data remotely. An exploit for this vulnerability has already been publicly released, and a proposed fix is currently pending approval.

Affected Version(s)

ag-ui 0.0.1

ag-ui 0.0.2

ag-ui 0.0.3

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-2026-120233 - Proof of Concept

References

https://vuldb.com/vuln/429592
vdb-entry
https://vuldb.com/vuln/429592/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-120233
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
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

ez-lbz (VulDB User)
VulDB CNA Team
.