VDB-353880 · CVE-2026-4993 · EUVD-2026-16913

wandb OpenUI up to 0.0.0.0/1.0 backend/openui/config.py LITELLM_MASTER_KEY hard-coded credentials

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.0	$0-$5k	1.36

Summaryinfo

A vulnerability, which was classified as critical, was found in wandb OpenUI up to 0.0.0.0/1.0. Affected is an unknown function of the file backend/openui/config.py. The manipulation of the argument LITELLM_MASTER_KEY results in hard-coded credentials. This vulnerability is known as CVE-2026-4993. Attacking locally is a requirement. Furthermore, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability classified as problematic has been found in wandb OpenUI up to 0.0.0.0/1.0. Affected is some unknown functionality of the file backend/openui/config.py. The manipulation of the argument LITELLM_MASTER_KEY with an unknown input leads to a hard-coded credentials vulnerability. CWE is classifying the issue as CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. This is going to have an impact on confidentiality.

The advisory is shared for download at gist.github.com. This vulnerability is traded as CVE-2026-4993. The exploitability is told to be easy. The attack needs to be approached locally. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1110.001.

The exploit is shared for download 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-2026-16913). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

wandb

Name

OpenUI

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

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-2026-4993 (🔒)
GCVE (CVE): GCVE-0-2026-4993
GCVE (VulDB): GCVE-100-353880
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 (57), 03/28/2026 19:06 (1)
Complete: 🔍
Submitter: Eric-b
Cache ID: 216:F46:103

Submitinfo

Accepted

Submit #778265: Weights and Biases OpenUI <= 1.0 (commit f9d8f0e) Use of Hard-coded Credentials (CWE-798) (by Eric-b)