Greptile follow-ups on the prior commit:
- (P1) ``is_request_body_safe`` recursed into ``litellm_embedding_config``
with no depth bound, so a request body 1000 levels deep could exhaust
Python's call stack and surface a 500 ``RecursionError``. Refactored
the check to be iterative (single-level descent into a fixed list of
nested-config keys) and extracted the per-dict banned-param scan into
a helper that's shared between the root and the nested call sites.
Also fixes the ``recursive_detector`` CI job that was triggered by
the recursive-by-name pattern.
- (P2) ``assert_same_origin`` error messages identified the mismatching
component but echoed the ``expected`` host and the candidate
hostname back to the caller. In the SSRF threat model the caller is
the attacker, so reflecting that information was a secondary leak of
operator infrastructure. Messages now identify only *which*
component mismatched (scheme / host / port) without naming names.
- (P2) ``_NESTED_CONFIG_KEYS`` was defined after the function that used
it. Hoisted the constant (and the new ``_BANNED_REQUEST_BODY_PARAMS``
tuple) above the function for readability.
Adds a 1000-level-deep nested config test that asserts no
``RecursionError`` and a hostname-leak test that asserts no operator
host appears in the rejection message.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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