CVE-2026-59820

Description

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.

CVSS breakdown

Affected products

• BerriAI / litellm< 1.83.7-stable – < 1.83.7-stable
• litellm / litellm1.83.7
• litellm / litellm1.83.7 – 1.83.7

References

• VENDOR_ADVISORYhttps://github.com/BerriAI/litellm/security/advisories/GHSA-5jmr-gcrj-2c9q
• PATCHhttps://github.com/BerriAI/litellm/pull/25475
• PATCHhttps://github.com/BerriAI/litellm/commit/6a15adcd64137d37f73dee76dfe7481f8c2d9196
• PATCHhttps://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable