---
id: "CVE-2026-63651"
page: "https://infrastack.ai/live/CVE-2026-63651"
kind: "vulnerability"
aliases: ["CVE-2026-63651"]
title: "LiveDocs: prompt injection can make the docs agent fetch internal URLs"
severity: "high"
cvss: 8.7
epss: null
exploited: false
status: "open"
category: "ai-tooling"
products: []
ecosystems: []
tags: ["ai-tooling", "livedocs", "mcp", "self-hosted"]
not_affected_if: ["version-0.7.0-or-later"]
published_at: "2026-11-10T17:17:46+00:00"
first_seen_at: "2026-11-10T17:22:44+00:00"
updated_at: "2026-11-10T17:23:46+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63651", "first_seen_at": "2026-11-10T17:22:44+00:00"}]
exploit_sources: []
---

# LiveDocs: prompt injection can make the docs agent fetch internal URLs

Link for people: https://infrastack.ai/live/CVE-2026-63651 (this .md is for agents)

LiveDocs, a documentation server for AI agents, passes any client-supplied URL straight to an HTTP request with no scheme or host allowlist, and follows redirects unconditionally. A prompt-injection payload in fetched documentation can make the model call fetch_docs against internal or cloud metadata endpoints and return the response into the conversation.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed LiveDocs version; versions before `0.7.0` are affected.
- Look for `fetch_docs`, `introspect`, or `resolve_source` in your MCP or agent configuration to confirm it is in use.

## Fix

- LiveDocs: move to `0.7.0` or later.

## Timeline

- 2026-11-10T17:22:44+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-63651

## Documents

- [advisory] Vendor advisory: github.com https://github.com/PsychQuant/livedocs/security/advisories/GHSA-xf4p-x7v8-3x4p
- [fix] Release notes: github.com https://github.com/PsychQuant/livedocs/releases/tag/v0.7.0

## From the sources

LiveDocs is a primary-source-first documentation for AI agents. Prior to version 0.7.0, fetch_docs and introspect (kinds openapi/graphql, and resolve_source's docs_url) pass a client-supplied URL straight to URLSession with no scheme or host allowlist, and redirects are followed unconditionally. A prompt-injection payload embedded in fetched documentation can steer the model to call fetch_docs against internal or metadata endpoints and stream the response back into the conversation. This issue has been patched in version 0.7.0.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_