What’s Vulnerable › Vulnerabilities

CVE-2026-59819: LiteLLM: Local file read via request-supplied OIDC file references

• Severity: medium (CVSS 4.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-08 · updated 2026-10-25
• Weakness: CWE-73

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.

Affected products

• BerriAI litellm: before 1.83.10; 1.83.10-nightly — fixed in 1.83.10

How to fix

Upgrade to a fixed version: BerriAI litellm 1.83.10. Check the vendor advisory for mitigations.

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

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