{"id":"CVE-2026-77362","state":"PUBLISHED","title":"obsidian-tc bridge tools expose data outside the read ACL","description":"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.","publishedAt":"2026-10-13T14:00:11.565Z","updatedAt":"2026-10-13T14:50:19.283Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["The-40-Thieves obsidian-tc"],"affected":[{"vendor":"The-40-Thieves","product":"obsidian-tc","versions":[{"version":"< 1.3.1","status":"affected"}]}],"references":["https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-43r2-c7g8-prc8","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"],"weaknesses":["CWE-200","CWE-863"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/77xxx/CVE-2026-77362.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77362","state":"PUBLISHED","datePublished":"2026-10-13T14:00:11.565Z","dateUpdated":"2026-10-13T14:50:19.283Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-20T19:28:35.245Z"},"containers":{"cna":{"title":"obsidian-tc bridge tools expose data outside the read ACL","descriptions":[{"lang":"en","value":"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":[{"vendor":"The-40-Thieves","product":"obsidian-tc","versions":[{"version":"< 1.3.1","status":"affected"}]}],"references":[{"url":"https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-43r2-c7g8-prc8","name":"https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-43r2-c7g8-prc8","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/The-40-Thieves/obsidian-tc/pull/75","name":"https://github.com/The-40-Thieves/obsidian-tc/pull/75","tags":["x_refsource_MISC"]},{"url":"https://github.com/The-40-Thieves/obsidian-tc/commit/5ab2109274acf0070601fa71a62b14ddc9652309","name":"https://github.com/The-40-Thieves/obsidian-tc/commit/5ab2109274acf0070601fa71a62b14ddc9652309","tags":["x_refsource_MISC"]},{"url":"https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1","name":"https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.3.1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-13T14:00:11.565Z"},"source":{"advisory":"GHSA-43r2-c7g8-prc8","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-13T14:50:11.531996Z","id":"CVE-2026-77362","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-13T14:50:19.283Z"}}]}}}