CVE-2026-105139

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/obot-platform/obot
https://github.com/obot-platform/obot/blob/8cfac5d38baa4fa0719e7975b7542608ff8bc932/pkg/mcp/vmcp.go#L231
https://github.com/obot-platform/obot/blob/8cfac5d38baa4fa0719e7975b7542608ff8bc932/pkg/mcp/vmcp.go#L97
https://github.com/obot-platform/obot/commit/8d92701c2018a7b9dd6d692498fa5f41fdb912ea
https://github.com/obot-platform/obot/releases/tag/v0.26.2
https://github.com/obot-platform/obot/security/advisories/GHSA-xhpw-65qw-wj6m
https://www.vulncheck.com/advisories/obot-0.26.0-before-0.26.2-authorization-bypass-via-vmcp-profile-prompts-and-resources

Configurations

No configuration.

History

07 Oct 2026, 13:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-07 13:17

Updated : 2026-10-07 15:17

NVD link : CVE-2026-105139

Mitre link : CVE-2026-105139

CVE.ORG link : CVE-2026-105139

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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