wandb OpenUI up to 1.0/3.5-turb APIStatusError backend/openui/server.py generic_exception_handler key information exposure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.2$0-$5k0.20

Summaryinfo

A vulnerability has been found in wandb OpenUI up to 1.0/3.5-turb and classified as problematic. Affected by this vulnerability is the function generic_exception_handler of the file backend/openui/server.py of the component APIStatusError Handler. This manipulation of the argument key causes information exposure. This vulnerability is handled as CVE-2026-4994. The attack can only be done within the local network. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability classified as problematic was found in wandb OpenUI up to 1.0/3.5-turb. Affected by this vulnerability is the function generic_exception_handler of the file backend/openui/server.py of the component APIStatusError Handler. The manipulation of the argument key with an unknown input leads to a information exposure vulnerability. The CWE definition for the vulnerability is CWE-209. The product generates an error message that includes sensitive information about its environment, users, or associated data. As an impact it is known to affect confidentiality.

The advisory is shared at gist.github.com. This vulnerability is known as CVE-2026-4994. The exploitation appears to be easy. The attack needs to be done within the local network. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1592 for this issue.

It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-16915). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information exposure
CWE: CWE-209 / CWE-200 / CWE-284
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/27/2026 Advisory disclosed
03/27/2026 +0 days VulDB entry created
03/28/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: gist.github.com
Status: Not defined

CVE: CVE-2026-4994 (🔒)
GCVE (CVE): GCVE-0-2026-4994
GCVE (VulDB): GCVE-100-353881
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/27/2026 14:53
Updated: 03/28/2026 19:06
Changes: 03/27/2026 14:53 (58), 03/28/2026 19:06 (1)
Complete: 🔍
Submitter: Eric-b
Cache ID: 216:D7A:103

Submitinfo

Accepted

  • Submit #778266: Weights and Biases OpenUI <= 1.0 (commit f9d8f0e) Generation of Error Message Containing Sensitive Information (CWE-209) (by Eric-b)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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