CVE-2026-59819

Description

LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.10-stable, LiteLLM's /health/test_connection endpoint resolved request-supplied environment and OIDC file references in litellm_params, allowing a proxy administrator or another privileged caller with permission to test model connections to read files from the local filesystem via an oidc/file/ reference. This issue is fixed in version 1.83.10-stable.

Weakness Type (CWE)

CWE-73 CWE-73

References

Other References

https://github.com/BerriAI/litellm/pull/25592 https://github.com/BerriAI/litellm/releases/tag/v1.83.10-stable https://github.com/BerriAI/litellm/security/advisories/GHSA-4g5m-c9r5-49xf

Frequently Asked Questions

What is CVE-2026-59819? +

LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.10-stable, LiteLLM's /health/test_connection endpoint resolved request-supplied environment and OIDC file references in litellm_params, allowing a proxy administrator or another privileged caller with permission to test model connections to read files from the local filesystem via an oidc/file/ reference. This issue is fixed in version 1.83.10-stable.

How do I check if I'm vulnerable to CVE-2026-59819? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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