{"cve":"CVE-2026-77366","nvd":{"published":"2026-10-12T18:17:23.830","modified":"2026-10-16T16:00:33.533","status":"Awaiting Analysis","description":"obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, tool dispatch does not compare the caller-controlled input.vault value with the vault bound to the caller, the JSON Web Token (JWT) has no vault claim, and the folder access-control list is shared globally. Any valid token can therefore select another configured vault and read, write, or delete its contents through affected tools. Version 1.3.1 fixes the vulnerability by binding tokens and request context to a vault and rejecting mismatched input.vault values before scope checks.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":9.9},"cwes":["CWE-639","CWE-863"],"references":["https://github.com/The-40-Thieves/obsidian-tc/commit/38b4992e87dc2715564236e1a42d005ab05a0194","https://github.com/The-40-Thieves/obsidian-tc/pull/72","https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1","https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-84c9-qqpq-2pq5"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:58:52.678897993+00:00"},"epss":{"cve":"CVE-2026-77366","score":0.00309,"percentile":0.23452,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-84c9-qqpq-2pq5","url":"https://osv.dev/vulnerability/GHSA-84c9-qqpq-2pq5","summary":"obsidian-tc tokens can access arbitrary configured vaults","modified":"2026-10-23T17:45:03.913249027Z","packages":[{"ecosystem":"npm","name":"obsidian-tc","purl":"pkg:npm/obsidian-tc","ranges":["<1.3.1"],"fixed":["1.3.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}