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CVSS 7.3 · HIGH

CVE-2026-7221

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.

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Analysis

This is an SSRF vulnerability in a Tencent-specific implementation of the Model Context Protocol. While the bug is high severity and a public exploit exists, Tencent Cloud services have minimal adoption within the MexicoDev community, which primarily uses AWS, GCP, and Azure.

Severity

Score: 7.3(HIGH)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
AV: NETWORK
AC: LOW
PR: NONE
UI: NONE
S: UNCHANGED
C: LOW
I: LOW
A: LOW
Weakness (CWE): CWE-918

EPSS

Probability of exploitation (next 30 days): 0.0006 (0.1%)
Percentile: 17.8%
EPSS: 2026-05-06

Technical 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.

Published: 4/28/2026, 4:16:26 AM
Last modified: 4/29/2026, 1:00:01 AM

References

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