Vulnerability in Dromara Lamp-Cloud
CVE-2026-9498
A vulnerability has been found in Dromara lamp-cloud up to 5.6.2. Impacted is the function GroovyClassLoader.parseClass of the component Message Template Handler. Such manipulation of the argument DefMsgTemplate.content leads to improper neutralization of special elements used in a template engine. It is possible to launch the attack 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (31.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Dromara Lamp-Cloud — versions 5.6.0, 5.6.1, 5.6.2
Weakness classification (CWE)
References
- vuldb.com/vuln/365481 (technical-description, vdb-entry)
- vuldb.com/vuln/365481/cti (signature, permissions-required)
- vuldb.com/submit/814103 (third-party-advisory)
- github.com/Ku4D3/bug_story/blob/main/report_02.md (exploit)
Frequently asked questions
- What is CVE-2026-9498?
- CVE-2026-9498 is a medium-severity vulnerability in Dromara Lamp-Cloud, classified under CWE-791. CVSS score: 6.3/10. Published 2026-05-25.
- How severe is CVE-2026-9498?
- Medium severity. CVSS v3 base score is 6.3 out of 10.