LiteLLM's /health/test_connection endpoint resolved request-supplied environment and OIDC file references in litellm_params. A proxy administrator, or another privileged caller with permission to test model connections, could cause LiteLLM to read files from the local filesystem via an oidc/file/ reference.
Because exploitation requires privileged proxy access, this is treated as a defense-in-depth issue rather than a cross-tenant privilege bypass.
The issue is fixed in 1.83.10-stable.
LiteLLM recommend upgrading to 1.83.10-stable or later.
Restrict /health/test_connection access to trusted administrators only.
{
"cwe_ids": [
"CWE-73"
],
"github_reviewed": true,
"github_reviewed_at": "2026-07-22T22:38:04Z",
"nvd_published_at": "2026-07-08T20:16:57Z",
"severity": "LOW"
}