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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-22"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59820.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:litellm:litellm:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.83.7"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "6a15adcd64137d37f73dee76dfe7481f8c2d9196"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v1.83.7-stable",
"range": [
{
"fixed": "e0d5c28db02b3219dbd944666a55f49732197922"
}
],
"source": "REFERENCES_TAG"
}
]
}