CVE-2026-4994: Information Exposure Through Error Message in wandb OpenUI
A vulnerability was found in wandb OpenUI up to 1.0/3.5-turb. Affected is the function generic_exception_handler of the file backend/openui/server.py of the component APIStatusError Handler. The manipulation of the argument key results in information exposure through error message. Access to the local network is required for this attack. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
AI Analysis
Technical Summary
This vulnerability affects the wandb OpenUI product, specifically the generic_exception_handler function in backend/openui/server.py. An attacker with local network access can manipulate the argument key to trigger error messages that expose sensitive information. The issue is present in versions up to 1.0 and 3.5-turb. The vendor has not provided a response or patch, and no official remediation guidance is available. The CVSS 4.0 vector indicates low attack complexity, no user interaction, and partial confidentiality impact.
Potential Impact
The vulnerability allows an attacker with local network access to gain information exposure through error messages, potentially revealing sensitive internal details. This could aid in further attacks or reconnaissance. The impact is limited to information disclosure with no direct integrity or availability effects reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no patch links are available, users should restrict local network access to the affected OpenUI service and monitor for suspicious activity. Avoid exposing the service to untrusted local networks until a fix is released.
CVE-2026-4994: Information Exposure Through Error Message in wandb OpenUI
Description
A vulnerability was found in wandb OpenUI up to 1.0/3.5-turb. Affected is the function generic_exception_handler of the file backend/openui/server.py of the component APIStatusError Handler. The manipulation of the argument key results in information exposure through error message. Access to the local network is required for this attack. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the wandb OpenUI product, specifically the generic_exception_handler function in backend/openui/server.py. An attacker with local network access can manipulate the argument key to trigger error messages that expose sensitive information. The issue is present in versions up to 1.0 and 3.5-turb. The vendor has not provided a response or patch, and no official remediation guidance is available. The CVSS 4.0 vector indicates low attack complexity, no user interaction, and partial confidentiality impact.
Potential Impact
The vulnerability allows an attacker with local network access to gain information exposure through error messages, potentially revealing sensitive internal details. This could aid in further attacks or reconnaissance. The impact is limited to information disclosure with no direct integrity or availability effects reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no patch links are available, users should restrict local network access to the affected OpenUI service and monitor for suspicious activity. Avoid exposing the service to untrusted local networks until a fix is released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-03-27T13:48:00.731Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69c83c4f919ccadcdf051abf
Added to database: 3/28/2026, 8:38:39 PM
Last enriched: 4/5/2026, 10:49:02 AM
Last updated: 5/12/2026, 5:06:00 PM
Views: 109
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.