AgentFixboard

Fetch tool can be steered to localhost or cloud metadata

An agent with the fetch server can be told, or redirected, to read internal addresses.

Difficulty
Moderate
Time
~15 min
Steps
3
Fixed in
v1.0.0
Last checked
2026-10-15

Verified fix: PR #5033 merged on . Fixed in v1.0.0 (first release published after the merge). Last checked .

Symptom

An agent with the fetch server can be told, or redirected, to read internal addresses.

Evidence what you'll see

  • Server follows redirects
  • No check for private, link-local or metadata IPs

Cause

URLs chosen by the model were fetched with redirects on and no egress filter.

Fix steps

0 of 3 done

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Verify the fix worked

  • A request to 127.0.0.1 or 169.254.169.254 is refused.
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Sources and credit

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