RCE in Onyx-Dot-App Onyx
CVE-2026-116004
A security vulnerability has been detected in onyx-dot-app Onyx up to 5.0.0. Impacted is an unknown function of the file web/src/app/craft/components/output-panel/PreviewTab.tsx. The manipulation leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Onyx-Dot-App Onyx — versions 5.0
Weakness classification (CWE)
References
- vuldb.com/vuln/426102 (vdb-entry)
- vuldb.com/vuln/426102/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-116004 (third-party-advisory)
- vuldb.com/submit/992835 (third-party-advisory)
- github.com/onyx-dot-app/onyx/security/advisories/GHSA-grhq-88h5-2h86 (broken-link)
- github.com/onyx-dot-app/onyx/ (product)
Frequently asked questions
- What is CVE-2026-116004?
- CVE-2026-116004 is a low-severity vulnerability in Onyx-Dot-App Onyx, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-10-25.
- How severe is CVE-2026-116004?
- Low severity. CVSS v3 base score is 3.5 out of 10.