Remote Code Execution Vulnerability in Dromara Lamp-Cloud
CVE-2026-9498

5.3MEDIUM

Key Information:

Vendor

Dromara

Status
Lamp-cloud
Vendor
CVE Published:
25 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9498?

A vulnerability exists in the Dromara lamp-cloud up to version 5.6.2, where the GroovyClassLoader.parseClass function is susceptible to manipulation through the DefMsgTemplate.content argument. This leads to improper neutralization of special elements used within the template engine, enabling a potential attacker to execute arbitrary code remotely. The flaw has been publicly disclosed, raising concerns for users as the vendor has not issued a corresponding response.

Affected Version(s)

lamp-cloud 5.6.0

lamp-cloud 5.6.1

lamp-cloud 5.6.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-9498 - Proof of Concept

References

https://vuldb.com/vuln/365481
vdb-entrytechnical-description
https://vuldb.com/vuln/365481/cti
signaturepermissions-required
https://vuldb.com/submit/814103
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ku4D3 (VulDB User)
VulDB CNA Team
.