Provider response URLs, model-supplied image refs, manifest-derived pet
URLs, and remote sitemap <loc> entries were fetched with raw
requests/httpx/urllib — bypassing tools/url_safety while every platform
media path already uses it. A hostile or compromised provider/manifest
endpoint could steer a server-side fetch at internal or metadata
addresses; several sites cache the body where it is deliverable back.
Apply the canonical is_safe_url + create_ssrf_safe_client pattern at
every site: per-hop revalidation at TCP connect (closing the
DNS-rebinding window), bounded redirect chains that fail closed on
missing Location, and caller headers scoped to the first hop only —
matching the openrouter provider's own documented contract that its
bearer key must never leave the operator-selected host.
Operator-configured endpoints and pinned release assets are out of
scope — those URLs are operator-selected, not remote-party-controlled.
Fixes#114468Closes#44728
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Co-authored-by: Ray <rayjun0412@gmail.com>
Co-authored-by: zapabob <1920071390@campus.ouj.ac.jp>