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CVE-2026-101084— obot before v0.21.1 Authorization Bypass via /mcp-connect

Quick assessment

Affected
obot-platform obot
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

obot 版本低于 v0.21.1 的实例在 /mcp-connect 端点上未能正确执行访问控制规则。任何经过身份验证的用户，只要拥有 MCP 服务器的服务器 ID，即可连接至受限的 MCP 服务器。攻击者可利用存储的 OAuth 凭据，绕过授权检查，并通过 MCP 工具调用访问和操作敏感的后端系统。

CVSS 9.6 · Critical
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I. Basic Information for CVE-2026-101084

Vulnerability Information
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Vulnerability Title
obot before v0.21.1 Authorization Bypass via /mcp-connect
Source: CVE Program / CVE List V5
Vulnerability Description
obot versions before v0.21.1 fail to enforce Access Control Rules on the /mcp-connect endpoint, allowing any authenticated user to connect to restricted MCP servers if they possess the server ID. Attackers can bypass authorization checks to access and manipulate sensitive backend systems through MCP tool calls using stored OAuth credentials.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
obot-platform obot 0 ~ 0.21.1 -

II. Public POCs for CVE-2026-101084

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III. Intelligence Information for CVE-2026-101084

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Vendor Advisories for CVE-2026-101084 (1)

Other References for CVE-2026-101084 (1)

Same Patch Batch · obot-platform · 2026-09-27 · 5 CVEs total

CVE-2026-101065 9.8 CRITICAL Obot Quickstart Docker Deployment Unauthenticated Admin Access
CVE-2026-101062 8.8 HIGH Obot before v0.23.0 Authentication Bypass via OAuth Dynamic Client Registration
CVE-2026-101064 7.6 HIGH Obot before v0.23.0 Server-Side Request Forgery via MCP
CVE-2026-101063 5.3 MEDIUM Obot before v0.23.0 Authentication Bypass via Registry API

IV. Related Vulnerabilities

Same product: obot
Same vendor: obot-platform
Same weakness: CWE-639

V. Comments for CVE-2026-101084

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