CVE-2026-103758
8.1 HIGHpublic exploit availablePublished 2026-10-01 · Updated 2026-10-01
AI risk analysis
- Summary
- This vulnerability allows authenticated users to bypass authorization checks and access restricted MCP servers, due to a missing route in the deny list.
- Exploitability
- Exploitation is relatively straightforward for authenticated users with basic roles, requiring them to use the /mcp-connect-composite/ route.
- Blast radius
- If exploited, this could lead to unauthorized access to restricted tools and services on MCP servers, potentially compromising sensitive data and operations.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Upgrade to Obot 0.25.0 or later.
Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.
NVD description
Obot 0.21.1 through 0.24.1 contains an authorization bypass vulnerability that allows authenticated users to reach MCP servers because the checkUI deny list omits the /mcp-connect-composite/ route. Basic-role users with a composite MCP ID can proxy requests through mcpGateway.Proxy to invoke tools on MCP servers restricted by Access Control Rules.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-863
Public exploit & PoC references
All references
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
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- CRITICALCVE-2026-77244PoC
- CRITICALCVE-2026-77254PoC
- CRITICALCVE-2026-78308
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