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CVE-2026-105139— Obot 0.26.0 before 0.26.2 Authorization Bypass via vMCP Profile Prompts and Resources

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.

在 Obot 0.26.0 至 0.26.2 版本之间（不含 0.26.2）存在一个授权绕过漏洞，允许匹配任何 vMCP 配置文件的已认证用户访问未授权组件的提示和资源。由于这些配置文件的授权控制仅施加于工具（tools）上，攻击者可以通过 vMCP 所有者的共享组件连接，访问提示、资源以及资源模板。

CVSS 4.3 · Medium

Possible ATT&CK Techniques 1 AI

T1133 · External Remote Services
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I. Basic Information for CVE-2026-105139

Vulnerability Information
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Vulnerability Title
Obot 0.26.0 before 0.26.2 Authorization Bypass via vMCP Profile Prompts and Resources
Source: CVE Program / CVE List V5
Vulnerability Description
Obot 0.26.0 before 0.26.2 contains an authorization bypass vulnerability that allows authenticated users matching any vMCP profile to reach prompts and resources of ungranted components. Because profiles were enforced only on tools, attackers can access prompts, resources, and resource templates through the vMCP owner's shared component connection.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
obot-platform obot 0.26.0 ~ 0.26.2 -

II. Public POCs for CVE-2026-105139

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III. Intelligence Information for CVE-2026-105139

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Other References for CVE-2026-105139 (7)

Same Patch Batch · obot-platform · 2026-10-07 · 3 CVEs total

CVE-2026-105138 6.5 MEDIUM Obot 0.12.0 before 0.26.2 Credential Exposure via MCP Catalog Entry API
CVE-2026-105140 4.2 MEDIUM Obot 0.25.0 before 0.25.6 and 0.26.0 before 0.26.1 Race Condition Restores Revoked Group M

IV. Related Vulnerabilities

Same product: obot
Same vendor: obot-platform
Same weakness: CWE-863

V. Comments for CVE-2026-105139

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