{"id":"CVE-2026-77364","aliases":["GHSA-cvp8-vvgf-69q4"],"url":"https://o3.security/vulnerability/CVE-2026-77364","summary":"obsidian-tc fail-open default ACL exposes Obsidian control-directory secrets","details":"### Impact\nWith a default configuration, an undefined `readPaths`/`writePaths` meant allow-all, the `strictReadDefault` flag was inert, and the `.obsidian`/`.git`/`.trash` control directories were denied only during enumeration — not on the direct request path. A caller could read `.obsidian/plugins/*/data.json`, exfiltrating **plugin API keys and Obsidian Sync passwords** (live-reproduced), as well as any other in-vault file by path.\n\n### Patches\nFixed in **1.3.1**. Upgrade to `>= 1.3.1`. The default now denies `.obsidian`/`.git`/`.trash` on read/write/delete and honors `strictReadDefault` on the request path.\n\n### Workarounds\nSet an explicit `readPaths`/`writePaths` whitelist that excludes the control directories.","published":"2026-10-12T17:52:51.653Z","modified":"2026-10-21T02:59:54.864353972Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"obsidian-tc","fixedVersion":"1.3.1"}],"fix":{"url":"https://github.com/The-40-Thieves/obsidian-tc/commit/74de320ddea855e1dec47d67beabe88491149dab","label":"The-40-Thieves/obsidian-tc@74de320"},"references":[{"type":"WEB","url":"https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77364.json"},{"type":"ADVISORY","url":"https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-cvp8-vvgf-69q4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77364"},{"type":"FIX","url":"https://github.com/The-40-Thieves/obsidian-tc/commit/74de320ddea855e1dec47d67beabe88491149dab"},{"type":"FIX","url":"https://github.com/The-40-Thieves/obsidian-tc/pull/73"},{"type":"PACKAGE","url":"https://github.com/The-40-Thieves/obsidian-tc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/cve-2026-77364"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-21T02:59:54.864353972Z"}}