{"id":"CVE-2026-77361","published":"2026-10-13T14:17:42.343","lastModified":"2026-10-16T22:17:55.790","description":"obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, read access-control list (ACL) checks use a lexical vault-relative path while containment checks use the resolved path. An in-vault symlink under an allowed glob that resolves into a denied folder can therefore bypass the read ACL and expose files in the denied folder. Exploitation requires an out-of-band-planted symlink and does not permit an escape from the vault root. Version 1.3.1 fixes the vulnerability by applying ACL checks to the resolved vault-relative path.","cvssScore":4.7,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-59","CWE-863"],"vendors":[],"products":[],"references":[{"url":"https://github.com/The-40-Thieves/obsidian-tc/commit/c81d1687e2cfec98a0d8bc5038c029f41ea9c920","tags":[]},{"url":"https://github.com/The-40-Thieves/obsidian-tc/pull/76","tags":[]},{"url":"https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1","tags":[]},{"url":"https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-c5xx-h28h-f682","tags":[]}],"exploitRefs":[{"url":"https://github.com/The-40-Thieves/obsidian-tc/commit/c81d1687e2cfec98a0d8bc5038c029f41ea9c920","tags":[]},{"url":"https://github.com/The-40-Thieves/obsidian-tc/pull/76","tags":[]},{"url":"https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1","tags":[]},{"url":"https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-c5xx-h28h-f682","tags":[]}],"hasPoc":true,"ai":null}