CVE-2026-7644 (GCVE-0-2026-7644)
Vulnerability from cvelistv5 – Published: 2026-05-02 15:00 – Updated: 2026-05-04 13:09
VLAI
EPSS
VEX
Title
ChatGPTNextWeb NextChat actions.ts addMcpServer improper authorization
Summary
A vulnerability has been found in ChatGPTNextWeb NextChat up to 2.16.1. Affected is the function addMcpServer of the file app/mcp/actions.ts. The manipulation leads to improper authorization. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-04 13:08 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/360756 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/360756/cti | signaturepermissions-required |
| https://vuldb.com/submit/806851 | third-party-advisory |
| https://github.com/ChatGPTNextWeb/NextChat/issues/6757 | exploitissue-tracking |
| https://github.com/ChatGPTNextWeb/NextChat/ | product |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ChatGPTNextWeb | NextChat |
Affected:
2.16.0
Affected: 2.16.1 |
guessed |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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