CVE-2026-77366

The obsidian-tc Model Context Protocol server is vulnerable to an authorization bypass in versions prior to 1.3.1 . The flaw occurs because tool dispatch fails to verify that the caller-controlled input.vault value matches the vault bound to the caller, compounded by a lack of vault claims in the...

CVE-2026-77366 obsidian-tc tokens can access arbitrary configured vaults

obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, tool dispatch does not compare the caller-controlled input.vault value with the vault bound to the caller, the JSON Web Token JWT has no vault claim, and the folder access-control list is...