CVE-2026-59820: LiteLLM

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.7-stable, LiteLLM Skills archive extraction did not sufficiently validate file paths from uploaded skill ZIP archives, allowing an authenticated user with access to LiteLLM LLM API routes or a key whose allowed_routes includes /v1/skills, anthropic_routes, or llm_api_routes to upload a crafted skill archive containing path traversal entries that could be written outside the intended extraction or staging directory. This issue is fixed in version 1.83.7-stable.

Affected products

• LiteLLM LiteLLM: before 1.83.7 (fixed in 1.83.7); version 1.83.7 only

Published 2026-07-08. Last modified 2026-07-13.