174 lines
8.3 KiB
JSON
174 lines
8.3 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-115477",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-10-22T15:06:52.738Z",
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"datePublished": "2026-10-23T14:04:33.518Z",
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"dateUpdated": "2026-10-29T17:50:19.455Z"
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},
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"containers": {
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"cna": {
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"title": "obsidian-tc: Declined human-in-the-loop confirmations can permit destructive calls over HTTP",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-285",
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"lang": "en",
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"description": "CWE-285: Improper Authorization",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-863",
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"lang": "en",
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"description": "CWE-863: Incorrect Authorization",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "LOW",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 7.1,
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"baseSeverity": "HIGH",
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"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",
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"version": "4.0"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-737x-cwfr-5vvc",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/The-40-Thieves/obsidian-tc/security/advisories/GHSA-737x-cwfr-5vvc"
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},
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{
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"name": "https://github.com/The-40-Thieves/obsidian-tc/issues/967",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/The-40-Thieves/obsidian-tc/issues/967"
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},
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{
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"name": "https://github.com/The-40-Thieves/obsidian-tc/pull/969",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/The-40-Thieves/obsidian-tc/pull/969"
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},
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{
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"name": "https://github.com/The-40-Thieves/obsidian-tc/commit/101c91c656e2c2b88bcf3696a5da035f8c032c71",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/The-40-Thieves/obsidian-tc/commit/101c91c656e2c2b88bcf3696a5da035f8c032c71"
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},
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{
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"name": "https://github.com/The-40-Thieves/obsidian-tc/blob/v1.31.4/CHANGELOG.md",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/The-40-Thieves/obsidian-tc/blob/v1.31.4/CHANGELOG.md"
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},
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{
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"name": "https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.31.4",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/The-40-Thieves/obsidian-tc/releases/tag/v1.31.4"
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}
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],
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"affected": [
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{
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"vendor": "The-40-Thieves",
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"product": "obsidian-tc",
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"versions": [
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{
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"version": ">= 1.13.0, < 1.31.4",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-10-23T14:04:33.518Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"source": {
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"advisory": "GHSA-737x-cwfr-5vvc",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/The-40-Thieves/obsidian-tc/issues/967",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-10-29T17:49:54.670297Z",
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"id": "CVE-2026-115477",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-29T17:50:19.455Z"
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}
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}
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]
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}
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} |