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CVE-2026-4993— wandb OpenUI config.py hard-coded credentials

Quick assessment

Affected
wandb OpenUI
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.

OpenUI是Weights & Biases开源的一个 UI 程序。 OpenUI 1.0及之前版本存在信任管理问题漏洞，该漏洞源于对参数LITELLM_MASTER_KEY的错误操作导致硬编码凭证。

CVSS 3.3 · Low EPSS 0.15% · P4
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I. Basic Information for CVE-2026-4993

Vulnerability Information
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Vulnerability Title
wandb OpenUI config.py hard-coded credentials
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的凭证
Source: CVE Program / CVE List V5
Vulnerability Title
OpenUI 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenUI是Weights & Biases开源的一个 UI 程序。 OpenUI 1.0及之前版本存在信任管理问题漏洞，该漏洞源于对参数LITELLM_MASTER_KEY的错误操作导致硬编码凭证。
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
wandb OpenUI 0.0.0 -

II. Public POCs for CVE-2026-4993

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III. Intelligence Information for CVE-2026-4993

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Vendor Advisories for CVE-2026-4993 (2)

Proof of Concept for CVE-2026-4993 (1)

Same Patch Batch · wandb · 2026-03-28 · 3 CVEs total

CVE-2026-4994 3.5 LOW wandb OpenUI APIStatusError server.py generic_exception_handler information exposure
CVE-2026-4995 3.5 LOW wandb OpenUI Window Message Event index.html cross site scripting

IV. Related Vulnerabilities

Same product: OpenUI
Same vendor: wandb
Same weakness: CWE-798