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LiteLLM EUVD-2026-31346

| CVE-2026-47101 HIGH
Incorrect Authorization (CWE-863)
2026-05-21 disclosure@vulncheck.com GHSA-qrc4-49gv-mv9m
8.7
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
May 21, 2026 - 22:02 EUVD
Source Code Evidence Fetched
May 21, 2026 - 21:30 vuln.today
Analysis Generated
May 21, 2026 - 21:30 vuln.today

DescriptionNVD

LiteLLM prior to 1.83.14 allows an authenticated internal_user to create API keys with access to routes that their role does not permit. When generating a key, the allowed_routes field is stored without verifying that the specified routes fall within the user's own permissions. A key created with access to admin-only routes can then be used to reach those routes successfully, bypassing the role-based access controls that would otherwise block the request, enabling full privilege escalation from internal_user to proxy_admin.

AnalysisAI

Privilege escalation in LiteLLM proxy versions prior to 1.83.14 allows an authenticated internal_user to elevate to proxy_admin by generating an API key with an attacker-controlled allowed_routes field that grants access to admin-only endpoints. Because the key-generation handler did not verify that the requested routes fell within the caller's own role permissions, the resulting key successfully reaches admin routes and bypasses role-based access control. …

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RemediationAI

Within 24 hours: Identify and inventory all LiteLLM proxy deployments and running versions; determine network exposure and authentication requirements. Within 7 days: Upgrade all instances to LiteLLM v1.83.14-stable or later; verify successful deployment across all environments. …

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EUVD-2026-31346 vulnerability details – vuln.today

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