Quick answers
- Is CVE-2026-9498 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-9498 being exploited in the wild.
- How severe is CVE-2026-9498?
- Medium severity, with a CVSS score of 6.3, published 25 May 2026.
- Which products and versions are affected?
- Dromara Lamp-Cloud up to 5.6.2.
- Is there a fix for CVE-2026-9498?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-9498 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-9498?
- Check whether you run Dromara Lamp-Cloud at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A vulnerability in Dromara lamp-cloud up to 5.6.2 allows for Remote Code Execution (RCE) via multiple attack surfaces in the Message Template Handler. The primary issue resides in the GroovyClassLoader.parseClass function, where the 'DefMsgTemplate.content' and 'DefMsgTemplate.script' arguments are processed without adequate sanitization. An attacker with network access and low-level privileges can submit a crafted message template that, when evaluated by the Groovy engine or FreeMarker template engine, executes arbitrary code. The vulnerability is exacerbated by the use of BeansWrapper in FreeMarker, which provides access to static models and Spring beans. No patch has been released by the vendor as of the disclosure date.
Affected products
- Dromara lamp-cloud up to 5.6.2
Timeline
- 2026-05-25: disclosed: Public disclosure of the exploit and vulnerability details.
- 2026-05-25: advisory: CVE-2026-9498 published.