PYSEC-2026-3476
LiteLLM: Local file read via request-supplied OIDC file references
Quick fix
PYSEC-2026-3476 — litellm: upgrade to the fixed version with the command below.
pip install --upgrade 'litellm>=1.83.10'Details
### Impact
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.
### Patches
The issue is fixed in `1.83.10-stable`.
LiteLLM recommend upgrading to `1.83.10-stable` or later.
### Workarounds
Restrict `/health/test_connection` access to trusted administrators only.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://github.com/BerriAI/litellm/security/advisories/GHSA-4g5m-c9r5-49xf[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2026-59819[ADVISORY]
- https://github.com/BerriAI/litellm/pull/25592[WEB]
- https://github.com/BerriAI/litellm[PACKAGE]
- https://github.com/BerriAI/litellm/releases/tag/v1.83.10-stable[WEB]
- https://pypi.org/project/litellm[PACKAGE]
- https://github.com/advisories/GHSA-4g5m-c9r5-49xf[ADVISORY]