Vulnerability in Berriai Litellm
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (45.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.001
Affected products
- Berriai Litellm — versions < 1.83.10-stable
- Litellm — versions 1.83.10
Weakness classification (CWE)
References
- github.com/BerriAI/litellm/security/advisories/GHSA-4g5m-c9r5-49xf (Patch, Mitigation, Vendor Advisory)
- github.com/BerriAI/litellm/pull/25592 (Patch, Issue Tracking)
- github.com/BerriAI/litellm/releases/tag/v1.83.10-stable (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-59819?
- CVE-2026-59819 is a medium-severity vulnerability in Berriai Litellm, classified under External Control of File Name or Path. CVSS score: 4.9/10. Published 2026-07-08.
- How severe is CVE-2026-59819?
- Medium severity. CVSS v3 base score is 4.9 out of 10.