CVE-2026-4993 Details
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.
A vulnerability exists in Weights and Biases OpenUI versions through 1.0 (commit f9d8f0e) due to a hard-coded master key for the LiteLLM proxy. This issue arises from a missing f-string prefix in the 'LITELLM_MASTER_KEY' environment variable, causing the proxy to initialize with a static string instead of a dynamic, secure key. As a result, any local attacker can gain unauthorized administrative access to the LiteLLM proxy endpoints, bypassing authentication and exploiting the victim's API credits.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Mar 28, 2026CISA-ADP
Assessed Mar 30, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/YLChen-007/3bf37486022d4c57caec3a35cd79ac92 | [email protected] | ExploitTechnical Description |
| https://vuldb.com/?ctiid.353880 | [email protected] | AdvisoryBroken Link |
| https://vuldb.com/?id.353880 | [email protected] | AdvisoryExploitTechnical Description |
| https://vuldb.com/?submit.778265 | [email protected] | ExploitTechnical Description |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-259 | Use of Hard-coded Password | [email protected] |
| CWE-798 | Use of Hard-coded Credentials | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| wandb OpenUI | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 28, 2026 | New CVE Received | [email protected] |
Volerion