---
id: CVE-2026-77362
title: >-
  obsidian-tc is a governed, agent-ready Model Context Protocol server for
  Obsidian vaults
summary: >-
  obsidian-tc is a governed, agent-ready Model Context Protocol server for
  Obsidian vaults. Prior to 1.3.1, bridge tools do not consistently apply the
  read access-control list (ACL) to every returned field. The tasks_filter tool
  exposes gr…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-200
  - CWE-863
vendor: The-40-Thieves
product: obsidian-tc
affected:
  - obsidian-tc < 1.3.1
patched:
  - obsidian-tc 1.3.1
published: '2026-10-13'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T16:00:33.533'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77362'
references:
  - url: >-
      https://github.com/The-40-Thieves/obsidian-tc/commit/5ab2109274acf0070601fa71a62b14ddc9652309
    label: security-advisories@github.com
  - url: 'https://github.com/The-40-Thieves/obsidian-tc/pull/75'
    label: security-advisories@github.com
  - url: 'https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1'
    label: security-advisories@github.com
  - url: >-
      https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-43r2-c7g8-prc8
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77362'
  - url: 'https://github.com/advisories/GHSA-43r2-c7g8-prc8'
tags:
  - nvd
  - cve.org
  - ghsa
  - npm
epss: 0.002
epssPercentile: 0.09702
aliases:
  - GHSA-43r2-c7g8-prc8
ecosystem: npm
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-13T14:50:11.531996Z'
ingestedAt: '2026-10-13T14:29:01.864Z'
---

## Overview

obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, bridge tools do not consistently apply the read access-control list (ACL) to every returned field. The tasks_filter tool exposes group counts derived from denied notes, makemd_query passes unfiltered sibling result fields through, and list_templates exposes template paths and parsed user-function bodies without a read-whitelist check. An authenticated caller can consequently infer or read data from notes outside the caller's read ACL. Version 1.3.1 fixes the vulnerability by filtering path-attributable fields and applying the read whitelist to list_templates.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-77362)

Affected packages:

- `obsidian-tc < 1.3.1`

Patched in:

- `obsidian-tc 1.3.1`

Source: https://github.com/advisories/GHSA-43r2-c7g8-prc8