CVE-2026-77362
obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults.
Impact
obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, bridge tools do not consistently apply the read access-control list (ACL) to every returned field. The tasks_filter tool exposes group counts derived from denied notes, makemd_query passes unfiltered sibling result fields through, and list_templates exposes template paths and parsed user-function bodies without a read-whitelist check. An authenticated caller can consequently infer or read data from notes outside the caller's read ACL. Version 1.3.1 fixes the vulnerability by filtering path-attributable fields and applying the read whitelist to list_templates.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | obsidian-tc | < 1.3.1 | 1.3.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-43r2-c7g8-prc8
- https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-43r2-c7g8-prc8
- https://nvd.nist.gov/vuln/detail/CVE-2026-77362
- https://github.com/The-40-Thieves/obsidian-tc/pull/75
- https://github.com/The-40-Thieves/obsidian-tc/commit/5ab2109274acf0070601fa71a62b14ddc9652309
- https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1