{"id":"GHSA-c5xx-h28h-f682","summary":"obsidian-tc : Symlink read-ACL scope bypass via lexical path checks","details":"### Impact\nACL 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.\n\n### Patches\nFixed in **1.3.1**. Upgrade to `\u003e= 1.3.1`. ACL enforcement now derives the realpath vault-relative path and feeds a single unified predicate at every site.\n\n### Workarounds\nDo not permit untrusted symlinks inside the vault.","aliases":["CVE-2026-77361"],"modified":"2026-10-23T17:45:03.921444112Z","published":"2026-10-23T17:28:19Z","database_specific":{"cwe_ids":["CWE-59","CWE-863"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-10-23T17:28:19Z","nvd_published_at":"2026-10-13T14:17:42Z"},"references":[{"type":"WEB","url":"https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-c5xx-h28h-f682"},{"type":"WEB","url":"https://github.com/The-40-Thieves/obsidian-tc/pull/76"},{"type":"WEB","url":"https://github.com/The-40-Thieves/obsidian-tc/commit/c81d1687e2cfec98a0d8bc5038c029f41ea9c920"},{"type":"PACKAGE","url":"https://github.com/The-40-Thieves/obsidian-tc"},{"type":"WEB","url":"https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/cve-2026-77361"}],"affected":[{"package":{"name":"obsidian-tc","ecosystem":"npm","purl":"pkg:npm/obsidian-tc"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.3.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-c5xx-h28h-f682/GHSA-c5xx-h28h-f682.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}