---
id: CVE-2026-59819
title: >-
  LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native)
  format
summary: >-
  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, a…
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-73
vendor: litellm
product: litellm
affected:
  - litellm < 1.83.10
  - litellm = 1.83.10
patched:
  - litellm 1.83.10
published: '2026-07-08'
updated: '2026-07-13'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-59819'
references:
  - url: 'https://github.com/BerriAI/litellm/pull/25592'
    label: security-advisories@github.com
  - url: 'https://github.com/BerriAI/litellm/releases/tag/v1.83.10-stable'
    label: security-advisories@github.com
  - url: 'https://github.com/BerriAI/litellm/security/advisories/GHSA-4g5m-c9r5-49xf'
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-59819'
  - url: 'https://github.com/BerriAI/litellm'
tags:
  - nvd
  - osv
  - pip
epss: 0.00572
epssPercentile: 0.44915
ingestedAt: '2026-07-13T13:27:18.175Z'
aliases:
  - GHSA-4g5m-c9r5-49xf
  - PYSEC-2026-3476
ecosystem: pip
---

## Overview

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

- `litellm < 1.83.10`
- `litellm = 1.83.10`

## Remediation

Upgrade past the affected range:

- `litellm 1.83.10`

## Package advisory (CVE-2026-59819)

Affected packages:

- `litellm < 1.83.10`

Patched in:

- `litellm 1.83.10`

Source: https://osv.dev/vulnerability/GHSA-4g5m-c9r5-49xf