CVE-2026-77363
obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, the Streamable HTTP transport does
CVSS
8.8
Alto
EPSS
0.2%
p4
KEV
—
Exploit Today
1
0-100
Publicado: 12 oct 2026 · Última mod.: 16 oct 2026 · CWE-346 · CWE-1385
obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, the Streamable HTTP transport does not validate the Host or Origin header or enable DNS-rebinding protection. When the documented loopback configuration uses auth.mode set to none, a malicious web page can send requests to the local MCP endpoint and receive unrestricted vault access through the http-local caller. Version 1.3.1 fixes the vulnerability by enabling host, origin, and DNS-rebinding validation.
- github.comhttps://github.com/The-40-Thieves/obsidian-tc/commit/6428bfe6fdfd43aa7b4b369be3aecd6a268fb928
- github.comhttps://github.com/The-40-Thieves/obsidian-tc/pull/74
- github.comhttps://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1
- github.comhttps://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-pqh8-4pj7-32xx