Information disclosure in Wandb Openui
CVE-2026-4994
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (21.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Wandb Openui — versions 1.0, 3.5-turb
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- gist.github.com/YLChen-007/8c6ff147186855e4b716e7526de213e1 (exploit)
Frequently asked questions
- What is CVE-2026-4994?
- CVE-2026-4994 is a low-severity vulnerability in Wandb Openui, classified under Information Disclosure. CVSS score: 3.5/10. Published 2026-03-28.
- How severe is CVE-2026-4994?
- Low severity. CVSS v3 base score is 3.5 out of 10.