CVE-2026-101084

Critical

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.

SeverityCritical

CVSS9.6

Exploit probability—

ProductGithub.com/obot-platform/obot

PublishedSep 27, 2026

First seenSep 27, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

github.com/obot-platform/obot0.21.1 or later

Vendor advisories

github.com/obot-platform/obot/security/advisories/GHSA-vw82-7fv8-r6gp

Affected products

Product	Affected versions	Fixed in
github.com/obot-platform/obotGo	v < 0.21.1	0.21.1

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