{"action":"Upgrade knowns to 0.30.0 or later.","affected":[{"fixed":"0.30.0","introduced":"0"}],"component":"knowns","cve_ids":["CVE-2026-86439"],"ecosystem":"npm","epss":0.01079,"exploited":false,"fixed_versions":["0.30.0"],"ghsa_id":"GHSA-9gfj-28hw-jchp","id":"tcs_01M5KFFTTHA7YR0KDMQ1QRNJ8Q","modified_at":"2026-09-25T19:45:09.714130484Z","published_at":"2026-09-25T19:32:05Z","references":["https://osv.dev/vulnerability/GHSA-9gfj-28hw-jchp","https://github.com/knowns-dev/knowns/security/advisories/GHSA-9gfj-28hw-jchp","https://nvd.nist.gov/vuln/detail/CVE-2026-86439","https://github.com/knowns-dev/knowns/commit/09c5a96fd5817b941dc86669278c1a17db10ed4e","https://github.com/knowns-dev/knowns","https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/storage/doc_store.go#L124-L129","https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/storage/memory_store.go#L203-L211","https://github.com/knowns-dev/knowns/releases/tag/v0.30.0","https://www.vulncheck.com/advisories/knowns-before-0.30.0-path-traversal-via-mcp-doc-and-memory-tools"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"GHSA-9gfj-28hw-jchp","url":"https://osv.dev/vulnerability/GHSA-9gfj-28hw-jchp"}],"summary":"Knowns Unrestricted Path Traversal leading to out-of-bounds arbitrary .md file read, write, and deletion in MCP Docs + Memory Tools"}