bsmi021 mcp-file-context-server Path Resolution index.ts read_context path traversal (CVE-2026-81486) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-81486

bsmi021 mcp-file-context-server Path Resolution index.ts read_context path traversal

Answer in brief

CVE-2026-81486 records a Unknown severity vulnerability in bsmi021 mcp-file-context-server Path Resolution index.ts read_context path traversal. The current sources do not mark it as known exploited. The current feed maps bsmi021/mcp-file-context-server (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 27, 2026Updated Aug 27, 2026Source checked Aug 27, 2026First seen by HOL Aug 27, 2026Material review Aug 27, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps bsmi021/mcp-file-context-server (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
bsmi021/mcp-file-context-servergeneric	1.0.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for bsmi021/mcp-file-context-server.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 27, 2026

Sources and claim methodology

Upstream source description

A vulnerability was detected in bsmi021 mcp-file-context-server 1.0.0. Affected by this issue is the function read_context of the file src/index.ts of the component Path Resolution. Performing a manipulation of the argument path results in path traversal. It is possible to initiate the attack remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Quoted source text, attributed separately from HOL analysis.