{"schema":"threatline.record/2","record":{"id":"CVE-2026-77366","aliases":["GHSA-84c9-qqpq-2pq5"],"summary":"obsidian-tc tokens can access arbitrary configured vaults","details":"### Impact\nTool dispatch did not check the caller-supplied `input.vault` against the caller's bound vault (`ctx.vaultId`); the folder ACL was a single global instance and the JWT carried no vault claim. As a result, **any valid token could read, write, or delete any configured vault** by passing `input.vault`, defeating multi-tenant isolation across ~90 tool sites. (`resources/read` was the only surface that already guarded this.)\n\n### Patches\nFixed in **1.3.1** (the fix was developed on the `v1.3.0` tag, which never published to npm; 1.3.1 is the first published release with the fix). Upgrade to `>= 1.3.1`.\n\n### Workarounds\nRun a single vault per server process, or isolate each tenant on a separate process/credential.\n\n### Fix\nA central `input.vault === ctx.vaultId` guard was added in dispatch before the scope check.","categories":["Libraries & packages"],"product":"obsidian-tc","vendor":"The-40-Thieves","ecosystem":"npm","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-84c9-qqpq-2pq5","source_modified_at":"2026-10-23T17:29:18Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"obsidian-tc"},"range":"< 1.3.1"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-77366","source_modified_at":"2026-10-13T15:14:30.957Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"obsidian-tc","vendor":"The-40-Thieves","versions":[{"version":"< 1.3.1","status":"affected"}],"defaultStatus":null},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-84c9-qqpq-2pq5","source_modified_at":"2026-10-23T17:45:03.913249027Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"obsidian-tc","purl":"pkg:npm/obsidian-tc"},"ranges":[{"events":[{"introduced":"0"},{"fixed":"1.3.1"}],"type":"SEMVER"}],"versions":[]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-84c9-qqpq-2pq5","source_modified_at":"2026-10-23T17:29:18Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"obsidian-tc"},"version":"1.3.1"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-84c9-qqpq-2pq5","source_modified_at":"2026-10-23T17:45:03.913249027Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"obsidian-tc","purl":"pkg:npm/obsidian-tc"},"version":"1.3.1"}],"cvss":9.9,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00308,"percentile":0.22442,"score_date":"2026-10-23"},"published_at":"2026-10-12T17:54:31.642Z","modified_at":"2026-10-23T17:45:03.913249027Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-84c9-qqpq-2pq5","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:29:18Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-77366","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-13T15:14:30.957Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-84c9-qqpq-2pq5","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:45:03.913249027Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-77366","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-84c9-qqpq-2pq5","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/The-40-Thieves/obsidian-tc/pull/72","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/The-40-Thieves/obsidian-tc/commit/38b4992e87dc2715564236e1a42d005ab05a0194","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1","tags":["x_refsource_MISC"]},{"url":"https://nvd.nist.gov/vuln/detail/cve-2026-77366","source":"GitHub Advisory Database"},{"url":"https://github.com/advisories/GHSA-84c9-qqpq-2pq5","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-13T15:14:24.356255Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-23T17:45:03.913249027Z","content_hash":"fce877602a83be784dd1bba5b7e2cd42e593f4b96c7b0776301afc7d02a071ce"}}