CVE-2026-77366

CRITICAL Status: Received

CVSS Scores

CVSS v3.x Base Score
9.9
CRITICAL

Description

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 shared globally. Any valid token can therefore select another configured vault and read, write, or delete its contents through affected tools. Version 1.3.1 fixes the vulnerability by binding tokens and request context to a vault and rejecting mismatched input.vault values before scope checks.

Published
October 12, 2026 6:17 PM
Last Modified
October 12, 2026 6:17 PM
Source
[email protected]

Weaknesses (CWE)

CWE-639 CWE-863

References

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