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Openui EUVD-2026-16913

| CVE-2026-4993 LOW
Use of Hard-coded Credentials (CWE-798)
2026-03-28 VulDB
1.9
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
1.9 LOW
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
PoC Detected
Mar 30, 2026 - 13:26 vuln.today
Public exploit code
EUVD ID Assigned
Mar 28, 2026 - 09:30 euvd
EUVD-2026-16913
Analysis Generated
Mar 28, 2026 - 09:30 vuln.today
CVE Published
Mar 28, 2026 - 09:15 nvd
LOW 1.9

DescriptionCVE.org

A vulnerability has been found in wandb OpenUI up to 0.0.0.0/1.0. This impacts an unknown function of the file backend/openui/config.py. The manipulation of the argument LITELLM_MASTER_KEY leads to hard-coded credentials. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

Wandb OpenUI up to version 1.0 contains hard-coded credentials exposure in backend/openui/config.py where the LITELLM_MASTER_KEY argument is improperly handled, allowing local authenticated users with low privileges to read sensitive authentication material. The vulnerability has a low CVSS score (3.3) due to local-only attack vector and low impact scope, but publicly available exploit code exists and vendor contact has been unsuccessful, increasing practical risk for deployed instances.

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Vulnerability AssessmentAI

Risk Assessment This vulnerability presents a mismatch between its low CVSS score (3.3) and real-world risk. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with local system access (e.g., a compromised container, shared CI/CD runner, or insider threat) executes the publicly available exploit from https://gist.github.com/YLChen-007/3bf37486022d4c57caec3a35cd79ac92, which reads or extracts the LITELLM_MASTER_KEY from the config.py file or process memory. The attacker then uses this stolen key to authenticate to LiteLLM APIs as the OpenUI application, enabling unauthorized API calls, model inference, or potential lateral movement into downstream language model services or cloud accounts. …
Remediation No vendor-released patch identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report.

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During next maintenance window: Apply vendor patches when convenient. …

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EUVD-2026-16913 vulnerability details – vuln.today

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