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LiteLLM CVE-2026-12795

| EUVDEUVD-2026-38154 MEDIUM
Missing Authentication for Critical Function (CWE-306)
2026-06-21 VulDB GHSA-j37q-q7p9-vpwm
Authentication Bypass Litellm
5.5
CVSS 4.0 · Vendor: VulDB
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Severity by source

Vendor (VulDB) PRIMARY
5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
vuln.today AI
6.5 MEDIUM

Network-reachable SSO debug endpoint requires no privileges; confidentiality and integrity are Low due to debug data exposure, with no credible availability impact described.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
Jun 22, 2026 - 06:32 vuln.today
CVSS changed
Jun 21, 2026 - 09:22 NVD
6.9 (MEDIUM) 5.5 (MEDIUM)

DescriptionCVE.org

A vulnerability was determined in BerriAI litellm up to 1.82.2. This affects the function json.dumps of the file litellm/proxy/management_endpoints/ui_sso.py of the component SSO Debug Flow. Executing a manipulation can lead to missing authentication. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.

AnalysisAI

Missing authentication in LiteLLM's SSO Debug Flow exposes the json.dumps output of the ui_sso.py management endpoint to unauthenticated remote attackers, enabling authentication bypass against versions up to 1.82.2. The CVSS 4.0 vector (AV:N/AC:L/PR:N/UI:N) confirms this is network-exploitable with no privileges or user interaction required. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify exposed LiteLLM management endpoint
Delivery
Send unauthenticated HTTP request to SSO debug route
Exploit
Trigger json.dumps serialization without auth check
Execution
Receive sensitive SSO state data
Impact
Leverage exposed tokens or config for session hijack or lateral movement
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Vulnerability AssessmentAI

Exploitation Exploitation requires that the LiteLLM proxy SSO feature is configured and in use, as the vulnerability is confined to the SSO Debug Flow code path in `ui_sso.py`. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 5.5 (Medium) reflects network-reachable, zero-privilege, zero-interaction exploitation (AV:N/AC:L/AT:N/PR:N/UI:N), but limits impact to Low across all three CIA dimensions on the vulnerable system (VC:L/VI:L/VA:L) with no subsequent-system impact (SC:N/SI:N/SA:N). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated remote attacker identifies a LiteLLM proxy instance with management endpoints reachable over the network and SSO configured. Using the publicly available POC from GitHub, the attacker sends a crafted HTTP request to the SSO debug endpoint in `ui_sso.py`, bypassing the absent authentication gate and receiving a JSON-serialized dump of SSO state - potentially including tokens, session data, or identity provider configuration. …
Remediation No vendor-released patch version has been independently confirmed in the available intelligence at time of analysis; the NVD entry and VulDB advisory should be monitored for an updated fixed release. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-12795 vulnerability details – vuln.today
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