{"metadata": {"vulnerability": "CVE-2026-108586", "count": 14, "kinds": {"milestone": 4, "sighting": 1, "kev": 0, "other": 9}}, "data": [{"timestamp": "2026-10-09T00:00:00Z", "date_only": false, "value": "2026-10-09T00:00:00.000Z", "kind": "other", "label": "Made public", "source": "cvelistv5 / VulnCheck", "record": "CVE-2026-108586", "field": "containers.cna.datePublic"}, {"timestamp": "2026-10-10T16:07:40.380Z", "date_only": false, "value": "2026-10-10T16:07:40.380Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-108586", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-10T16:14:10.297Z", "date_only": false, "value": "2026-10-10T16:14:10.297Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-108586", "field": "cveMetadata.datePublished"}, {"timestamp": "2026-10-10T16:14:10.297Z", "date_only": false, "value": "2026-10-10T16:14:10.297Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / VulnCheck", "record": "CVE-2026-108586", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-10T16:29:28.833Z", "date_only": false, "value": "2026-10-10T16:29:28.833768Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117417559199624769", "record": "CVE-2026-108586", "field": "creation_timestamp", "uuid": "4df8e4ac-6252-41ec-9a2d-e9b6d4b25fd4", "content": "CVE-2026-108586 1MCP Agent 0.20.0 through 0.39.0 OAuth Tag-Scope Bypass via Negated Tag Filter 1MCP Agent (@1mcp/agent) 0.20.0 through 0.39.0 contains an incorrect authorization vulnerability that allows authenticated clients to bypass OAuth tag-scope enforcement using negated advanced tag-filter expressions. Attackers holding a single-tag token can send a filter like not <granted-tag> to list and invoke tools on backend MCP servers outside their granted scopes.\nhttps://www.cve.org/CVERecord?id=CVE-2026-108586https://hackmd.io/@haind/1mcp-negated-tag-filter-oauth-scope-bypasshttps://github.com/1mcp-app/agent/blob/v0.39.0/src/sdk/legacy/transport/http/middlewares/scopeAuthMiddleware.ts#L163-L183https://github.com/1mcp-app/agent/blob/v0.39.0/src/transport/http/routes/inspectHelpers.ts#L79-L102https://github.com/1mcp-app/agenthttps://www.vulncheck.com/advisories/1mcp-agent-0.20.0-through-0.39.0-oauth-tag-scope-bypass-via-negated-tag-filter#1mcp-app #@1mcp/agent#CVE_2026_108586#bot", "url": "https://infosec.exchange/users/cve/statuses/117417559199624769"}, {"timestamp": "2026-10-10T17:17:00Z", "date_only": false, "value": "2026-10-10T17:17:00Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-W2J7-XXH9-9Q67", "record": "GHSA-W2J7-XXH9-9Q67", "field": "database_specific.nvd_published_at"}, {"timestamp": "2026-10-10T17:17:00.593Z", "date_only": false, "value": "2026-10-10T17:17:00.593", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-108586", "record": "FKIE_CVE-2026-108586", "field": "published"}, {"timestamp": "2026-10-10T18:31:20Z", "date_only": false, "value": "2026-10-10T18:31:20Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-W2J7-XXH9-9Q67", "record": "GHSA-W2J7-XXH9-9Q67", "field": "published"}, {"timestamp": "2026-10-10T18:31:20Z", "date_only": false, "value": "2026-10-10T18:31:20Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-W2J7-XXH9-9Q67", "record": "GHSA-W2J7-XXH9-9Q67", "field": "modified"}, {"timestamp": "2026-10-13T18:27:08.982Z", "date_only": false, "value": "2026-10-13T18:27:08.982440Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-108586", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-10-13T18:27:08.982Z", "date_only": false, "value": "2026-10-13T18:27:08.982440Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-108586", "record": "FKIE_CVE-2026-108586", "field": "metrics.ssvcV203.0.ssvcData.timestamp"}, {"timestamp": "2026-10-13T18:27:18.799Z", "date_only": false, "value": "2026-10-13T18:27:18.799Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-108586", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-13T18:27:18.799Z", "date_only": false, "value": "2026-10-13T18:27:18.799Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-108586", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-16T19:21:14.417Z", "date_only": false, "value": "2026-10-16T19:21:14.417", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-108586", "record": "FKIE_CVE-2026-108586", "field": "lastModified"}]}