## obsidian-tc HTTP transport lacks Origin/DNS-rebinding protection, enabling drive-by vault access on loopback

- 種別: advisory
- 重大度: critical
- 関連技術: nodejs
- CVE: CVE-2026-77363
- 公開日時: 2026-10-23T18:29:02.000Z
- 情報源: GitHub Advisory Database (https://github.com/advisories/GHSA-pqh8-4pj7-32xx)
- パーマリンク: https://vulnpulse.app/items/ghsa-ghsa-pqh8-4pj7-32xx

影響: npm:obsidian-tc < 1.3.1 → 1.3.1
The Streamable HTTP transport was constructed without enableDnsRebindingProtection/allowedHosts/allowedOrigins and performed no Origin-header validation. With the documented auth.mode: "none" loopback default, a drive-by web page could POST http://127.0.0.1/mcp and receive caller http-local with scopes [""] — full vault read/write — via DNS rebinding / a forged Origin. Patches Fixed in 1.3.1. Upgrade to >= 1.3.1. The transport now enables DNS-rebinding protection and allowed hosts/origins and r…