Files
litellm/tests/proxy_unit_tests
userandClaude Opus 4.7 75d1a0116e fix(static-assets): use async_safe_get; drop SVG; serve bytes inline on cache miss
Three review items addressed:

* **Veria (Medium): SSRF via redirect.** ``fetch_validated_image_bytes``
  was calling ``validate_url(url)`` once and then fetching with the
  default httpx client, so a 3xx to an internal IP would have been
  followed unvalidated. Switched to ``async_safe_get`` (the existing
  SSRF primitive used elsewhere in the codebase) which walks each
  redirect hop, re-validates, and rejects redirects to blocked
  networks. Default ``litellm.user_url_validation`` is True so
  protection is on out of the box.

* **Greptile (P2): SVG can embed JS.** Removed ``image/svg+xml`` from
  the allowed-Content-Type set. The hardcoded response media type
  (``image/jpeg`` / ``image/x-icon``) means a real SVG body wouldn't
  render as SVG anyway in modern browsers — the allowlist entry was
  giving up XSS surface for no actual SVG-rendering benefit. If real
  SVG support is wanted later, that's a deliberate feature PR with CSP
  / nosniff bundled.

* **Greptile (P2): cache-write OSError drops validated bytes.** When
  the upstream fetch succeeded but ``open(cache_path, "wb")`` raised
  (read-only assets dir), the bytes were discarded and the default
  logo was served — a silent regression for that deployment. Now
  serve the validated bytes inline via ``Response(...)`` as a fallback
  before falling back to default.

Tests:

- Replaced low-level mocks of ``validate_url`` with mocks of
  ``async_safe_get`` directly, exercising the helper's contract
  rather than the SSRF primitive's internals.
- New ``test_rejects_svg_content_type`` confirms SVG is blocked.
- ``test_get_image_cache_logic`` fixture now sets
  ``mock_response.is_redirect = False`` so ``async_safe_get`` doesn't
  treat the Mock's truthy attribute as a redirect.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-29 21:57:22 +00:00
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