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CVE-2026-59820— LiteLLM: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Quick assessment

Affected
BerriAI litellm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LiteLLM是LiteLLM团队开源的一个应用程序。 LiteLLM 1.83.7-stable之前版本存在路径遍历漏洞，该漏洞源于对上传的技能ZIP存档中文件路径验证不充分，可能导致经过身份验证的用户上传包含路径遍历条目的特制技能存档，从而将文件写入预期提取或暂存目录之外。

AI Predicted 8.1 Difficulty: Easy EPSS 0.59% · P46

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
BerriAI litellm < 1.83.7-stable affected
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I. Basic Information for CVE-2026-59820

Vulnerability Information
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Vulnerability Title
LiteLLM: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
LiteLLM 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LiteLLM是LiteLLM团队开源的一个应用程序。 LiteLLM 1.83.7-stable之前版本存在路径遍历漏洞，该漏洞源于对上传的技能ZIP存档中文件路径验证不充分，可能导致经过身份验证的用户上传包含路径遍历条目的特制技能存档，从而将文件写入预期提取或暂存目录之外。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
BerriAI litellm < 1.83.7-stable -

II. Public POCs for CVE-2026-59820

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III. Intelligence Information for CVE-2026-59820

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Patches & Fixes for CVE-2026-59820 (2)

Vendor Advisories for CVE-2026-59820 (1)

Vendor Pages for CVE-2026-59820 (1)

Same Patch Batch · BerriAI · 2026-07-08 · 4 CVEs total

CVE-2026-59822 8.8 HIGH LiteLLM: MCP Authentication Bypass via OAuth2 Passthrough Fallback
CVE-2026-59821 LiteLLM: Custom Code Guardrails production endpoints bypass code safety checks
CVE-2026-59819 LiteLLM: Local file read via request-supplied OIDC file references

IV. Related Vulnerabilities

Same product: litellm
Same vendor: BerriAI
Same weakness: CWE-22

V. Comments for CVE-2026-59820

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