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Blog post · October 27, 2026 · kb.cert.org

VU#701544: mpc-lib Hardened Derivation Fails to Protect Ancestor Isolation

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curl -X POST https://mcp.decisioninsights.ai/api/mcp-public \
  -H "content-type: application/json" \
  -H "accept: application/json, text/event-stream" \
  -d '{"id":1,"jsonrpc":"2.0","method":"tools/call","params":{"arguments":{"uuid":"c18ef8fe-42fb-4c1e-a26a-a572d8569223"},"name":"di_get_content"}}'

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How an agent can check this article before citing it

The check What the record shows Where it is in the data
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The companies are real VU, Document, Fireblocks, IDS, index and ONE, each a record of its own about, mentions
Whose words are whose Summary by Decision Insights; the original keeps its own byline author, publisher
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