{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-115477","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-22T15:06:52.738Z","datePublished":"2026-10-23T14:04:33.518Z","dateUpdated":"2026-10-29T17:50:19.455Z"},"containers":{"cna":{"title":"obsidian-tc: Declined human-in-the-loop confirmations can permit destructive calls over HTTP","problemTypes":[{"descriptions":[{"cweId":"CWE-285","lang":"en","description":"CWE-285: Improper Authorization","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-737x-cwfr-5vvc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-737x-cwfr-5vvc"},{"name":"https://github.com/The-40-Thieves/obsidian-tc/issues/967","tags":["x_refsource_MISC"],"url":"https://github.com/The-40-Thieves/obsidian-tc/issues/967"},{"name":"https://github.com/The-40-Thieves/obsidian-tc/pull/969","tags":["x_refsource_MISC"],"url":"https://github.com/The-40-Thieves/obsidian-tc/pull/969"},{"name":"https://github.com/The-40-Thieves/obsidian-tc/commit/101c91c656e2c2b88bcf3696a5da035f8c032c71","tags":["x_refsource_MISC"],"url":"https://github.com/The-40-Thieves/obsidian-tc/commit/101c91c656e2c2b88bcf3696a5da035f8c032c71"},{"name":"https://github.com/The-40-Thieves/obsidian-tc/blob/v1.31.4/CHANGELOG.md","tags":["x_refsource_MISC"],"url":"https://github.com/The-40-Thieves/obsidian-tc/blob/v1.31.4/CHANGELOG.md"},{"name":"https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.31.4","tags":["x_refsource_MISC"],"url":"https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.31.4"}],"affected":[{"vendor":"The-40-Thieves","product":"obsidian-tc","versions":[{"version":">= 1.13.0, < 1.31.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-23T14:04:33.518Z"},"descriptions":[{"lang":"en","value":"obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. From 1.13.0 until 1.31.4, on a Streamable HTTP deployment with `auth.jwtSecret` configured and a 2026-07-28-era client declaring `elicitation.form` support, a dispatch-gated tool call offered an `inputRequired` confirmation could still complete after the human declined or cancelled, or the elicitation response was omitted or malformed, provided the client echoed the validly bound `requestState` on resubmission. The server trusted an authentic, call-bound state as proof of approval even though that state was minted before the `elicitation/create` leg was asked and proved only that the resubmission belonged to the same call. A client behaving incorrectly or under an attacker's control could therefore execute dispatch-gated destructive vault operations without the human's approval, while still requiring the caller's ordinary tool permissions. Only tools marked `destructive: true` or requiring a scope with a human-in-the-loop floor were reachable through this bypass. The sixteen handler-side conditionally gated tools, including `write_note` overwrite and `move_note`, did not read elicitation state on the modern wire and let neither approval nor decline through that path. Affected deployments using stdio or leaving `auth.jwtSecret` unset instead used the CLI `elicit_token` fallback and did not offer this `requestState` round trip. The fix does not prevent a malicious client from reporting a fabricated approval, because the server cannot verify that the client displayed the form or that a human saw it. This issue is fixed in version 1.31.4."}],"source":{"advisory":"GHSA-737x-cwfr-5vvc","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/The-40-Thieves/obsidian-tc/issues/967","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-29T17:49:54.670297Z","id":"CVE-2026-115477","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-29T17:50:19.455Z"}}]}}