CVE-2026-86439
1 advisory.
npm/knowns CVE-2026-86439: high 8.8, EPSS 1.08%
Knowns Unrestricted Path Traversal leading to out-of-bounds arbitrary .md file read, write, and deletion in MCP Docs + Memory Tools
Action: Upgrade knowns to 0.30.0 or later.
npm i knowns@0.30.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 0.30.0 | - |
Fixed versions
| 0.30.0 |
Sources
- osv: 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
CVE-2026-86439 · published · modified · JSON