RCE in Langgenius Dify
CVE-2026-6619
A vulnerability has been found in langgenius dify up to 1.13.3. Impacted is the function openInNewTab of the file web/app/components/base/image-uploader/image-preview.tsx of the component ImagePreview. The manipulation of the argument filename leads to cross site scripting. The attack may be initiated remotely. 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.
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
EPSS: 0.003 (23.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.7% 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
- Langgenius Dify — versions 1.13.0, 1.13.1, 1.13.2
Weakness classification (CWE)
References
- vuldb.com/vuln/358254 (technical-description, vdb-entry)
- vuldb.com/vuln/358254/cti (signature, permissions-required)
- vuldb.com/submit/792242 (third-party-advisory)
- gist.github.com/chenhouser2025/a8ac169dad5cf84811cf9c0505491ea8 (exploit)
Frequently asked questions
- What is CVE-2026-6619?
- CVE-2026-6619 is a low-severity vulnerability in Langgenius Dify, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-04-20.
- How severe is CVE-2026-6619?
- Low severity. CVSS v3 base score is 3.5 out of 10.