← The Wire

Public story · 2026-02-17 · source-backed

Defend Against MCP Tool Poisoning — Intermediate

Confidence
source-backed
Sources
1
Redaction
redacted

Story

Inspect all tool metadata for hidden instructions and Base64 payloads. Pin tool definitions with hash verification (mcp-scan from Invariant Labs). Isolate MCP servers in Docker with --read-only --cap-drop ALL. Disable auto-approve in production. Log all invocations. Elastic Guide

Related stories

Each link below shares sources, entities, or timing with this story.

  1. Shared entity: Docker / Same source / Shared topic / What happened next

    Defend Your MCP Stack with Four-Layer Defense

    Both cover Docker; cite the same source (Elastic Guide); overlapping topics (defend, docker, hash, tool).

  2. Shared entity: Docker / Shared topic / Tension

    Scan MCP Servers Against OWASP Agentic Top 10 — Intermediate

    Both cover Docker; overlapping topics (against, cap-drop, docker); pushes against this story (against).

  3. Shared entity: Docker / What happened next / Tension

    Pydantic Ships Monty: Rust Python Interpreter for Safe Agent Code Execution.

    Both cover Docker; picks up the Docker thread on 2026-03-16; pushes against this story (vs).

  4. OpenClaw CVE-2026-25253: One-Click RCE Kill Chain

    Both cover Docker; picks up the Docker thread on 2026-02-25; pushes against this story (against).

  5. Shared entity: Docker / Earlier coverage / Tension

    45 Claude Code Tips Repository

    Both cover Docker; earlier Docker coverage from 2026-02-12; pushes against this story (vs).

  6. Shared entity: Docker / Shared topic

    hexstrike-ai — 150+ Security Tools as MCP Server (6,895 stars)

    Both cover Docker; overlapping topics (docker, tool).

  7. Shared topic / Tension

    ShareLock splits one malicious prompt across multiple tools so no single one looks bad.

    Overlapping topics (against, instruction, tool); pushes against this story (against).

  8. Defend Against SANDWORM_MODE

    Overlapping topics (against, defend, intermediate); pushes against this story (against).

Source trail

Entities

Provenance

AI generated
no
Story unit
2026-02-17-defend-against-mcp-tool-poisoning-intermediate
Labels
source-backed, canonical briefing excerpt