CVE-2026-7221
TencentCloudBase CloudBase-MCP open-url API Endpoint interactive-server.ts openUrl server-side request forgery
Description
A vulnerability was found in TencentCloudBase CloudBase-MCP up to 2.17.0. Affected is the function openUrl of the file mcp/src/interactive-server.ts of the component open-url API Endpoint. The manipulation of the argument req.body.url results in server-side request forgery. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2.17.1 is able to address this issue. The patch is identified as 3f678a1e7bd400cd76469d61024097d4920dc6b5. It is recommended to upgrade the affected component.
INFO
Published Date :
April 28, 2026, 4:16 a.m.
Last Modified :
July 24, 2026, 8:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-7221
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Upgrade TencentCloudBase CloudBase-MCP to version 2.17.1.
- Apply patch 3f678a1e7bd400cd76469d61024097d4920dc6b5.
- Upgrade the affected open-url API Endpoint component.
Public PoC/Exploit Available at Github
CVE-2026-7221 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-2026-7221.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-7221 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-2026-7221
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).
The Project shares all information on MCP related CVE's published
mcp mcp-security mcp-cve
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-7221 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-7221 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.
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CVE Translated by [email protected]
Jul. 24, 2026
Action Type Old Value New Value Added Translation Title: CloudBase-MCP de TencentCloudBase, Description: Una vulnerabilidad fue encontrada en TencentCloudBase CloudBase-MCP hasta la versión 2.17.0. Afectada es la función openUrl del archivo mcp/src/interactive-server.ts del componente open-url API Endpoint. La manipulación del argumento req.body.url resulta en falsificación de petición del lado del servidor. Es posible lanzar el ataque remotamente. El exploit ha sido hecho público y podría ser usado. La actualización a la versión 2.17.1 es capaz de abordar este problema. El parche se identifica como 3f678a1e7bd400cd76469d61024097d4920dc6b5. Se recomienda actualizar el componente afectado. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'TencentCloudBase', 'modules': ['open-url API Endpoint'], 'product': 'CloudBase-MCP', 'versions': [{'status': 'affected', 'version': '2.0'}, {'status': 'affected', 'version': '2.1'}, {'status': 'affected', 'version': '2.2'}, {'status': 'affected', 'version': '2.3'}, {'status': 'affected', 'version': '2.4'}, {'status': 'affected', 'version': '2.5'}, {'status': 'affected', 'version': '2.6'}, {'status': 'affected', 'version': '2.7'}, {'status': 'affected', 'version': '2.8'}, {'status': 'affected', 'version': '2.9'}, {'status': 'affected', 'version': '2.10'}, {'status': 'affected', 'version': '2.11'}, {'status': 'affected', 'version': '2.12'}, {'status': 'affected', 'version': '2.13'}, {'status': 'affected', 'version': '2.14'}, {'status': 'affected', 'version': '2.15'}, {'status': 'affected', 'version': '2.16'}, {'status': 'affected', 'version': '2.17.0'}, {'status': 'unaffected', 'version': '2.17.1'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-7221', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-04-28T13:59:37.594891Z'} -
Data Remediation by [email protected]
Apr. 29, 2026
Action Type Old Value New Value Changed CVSS V4.0 Score 6.9 5.5 -
New CVE Received by [email protected]
Apr. 28, 2026
Action Type Old Value New Value Added Description A vulnerability was found in TencentCloudBase CloudBase-MCP up to 2.17.0. Affected is the function openUrl of the file mcp/src/interactive-server.ts of the component open-url API Endpoint. The manipulation of the argument req.body.url results in server-side request forgery. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2.17.1 is able to address this issue. The patch is identified as 3f678a1e7bd400cd76469d61024097d4920dc6b5. It is recommended to upgrade the affected component. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CWE CWE-918 Added Reference https://github.com/TencentCloudBase/CloudBase-MCP/ Added Reference https://github.com/TencentCloudBase/CloudBase-MCP/commit/3f678a1e7bd400cd76469d61024097d4920dc6b5 Added Reference https://github.com/TencentCloudBase/CloudBase-MCP/issues/509 Added Reference https://github.com/TencentCloudBase/CloudBase-MCP/pull/510 Added Reference https://github.com/TencentCloudBase/CloudBase-MCP/releases/tag/v2.17.1 Added Reference https://vuldb.com/submit/802230 Added Reference https://vuldb.com/vuln/359821 Added Reference https://vuldb.com/vuln/359821/cti