## obsidian-tc : Symlink read-ACL scope bypass via lexical path checks

- 種別: advisory
- 重大度: medium
- 関連技術: nodejs
- CVE: CVE-2026-77361
- 公開日時: 2026-10-23T17:28:19.000Z
- 情報源: GitHub Advisory Database (https://github.com/advisories/GHSA-c5xx-h28h-f682)
- パーマリンク: https://vulnpulse.app/items/ghsa-ghsa-c5xx-h28h-f682

影響: npm:obsidian-tc < 1.3.1 → 1.3.1
ACL checks ran on the lexical vault-relative path while containment used the realpath. An in-vault symlink placed under an allowed glob, whose realpath resolved into a denied folder, passed the read ACL — an intra-vault read-ACL-scope bypass. It requires an out-of-band-planted symlink (no MCP tool creates one) and is not a vault-root escape. Patches Fixed in 1.3.1. Upgrade to >= 1.3.1. ACL enforcement now derives the realpath vault-relative path and feeds a single unified predicate at every sit…