Path Traversal in Boxpositron With-Context-Mcp
CVE-2026-81491
A flaw has been found in boxpositron with-context-mcp up to 3.0.7. This affects the function ingest_notes/teleport_notes/sync_notes/project_folder of the file src/index.ts. Executing a manipulation can lead to path traversal. It is possible to launch the attack remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.006 (46.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002
Affected products
- Boxpositron With-Context-Mcp — versions 3.0.0, 3.0.1, 3.0.2
Weakness classification (CWE)
References
- vuldb.com/vuln/395981 (technical-description, vdb-entry)
- vuldb.com/vuln/395981/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-81491 (third-party-advisory)
- vuldb.com/submit/887138 (third-party-advisory)
- github.com/boxpositron/with-context-mcp/issues/2 (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-81491?
- CVE-2026-81491 is a high-severity vulnerability in Boxpositron With-Context-Mcp, classified under Path Traversal. CVSS score: 7.3/10. Published 2026-08-27.
- How severe is CVE-2026-81491?
- High severity. CVSS v3 base score is 7.3 out of 10.