ZDI-26-479: Heimdall Data Database Proxy uploadJar Directory Traversal Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Heimdall Data Database Proxy. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-18274.
AI Analysis
Technical Summary
CVE-2026-18274 is a remote code execution vulnerability in Heimdall Data Database Proxy caused by improper validation of user-supplied paths in the uploadJar method. Exploitation requires authentication and allows attackers to execute arbitrary code as root. The vulnerability was reported to the vendor on 2026-04-14 and publicly disclosed on 2026-07-29. The issue is fixed in release build 25.03.01.24.
Potential Impact
Successful exploitation enables an authenticated remote attacker to execute arbitrary code with root privileges on affected Heimdall Data Database Proxy installations, potentially leading to full system compromise.
Mitigation Recommendations
Apply the official fix by upgrading Heimdall Data Database Proxy to version 25.03.01.24 or later. This release addresses the directory traversal vulnerability in the uploadJar method. No additional mitigations are specified.
ZDI-26-479: Heimdall Data Database Proxy uploadJar Directory Traversal Remote Code Execution Vulnerability
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Heimdall Data Database Proxy. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.2. The following CVEs are assigned: CVE-2026-18274.
Affected software
pkg:github/heimdalldata/database-proxyRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18274 is a remote code execution vulnerability in Heimdall Data Database Proxy caused by improper validation of user-supplied paths in the uploadJar method. Exploitation requires authentication and allows attackers to execute arbitrary code as root. The vulnerability was reported to the vendor on 2026-04-14 and publicly disclosed on 2026-07-29. The issue is fixed in release build 25.03.01.24.
Potential Impact
Successful exploitation enables an authenticated remote attacker to execute arbitrary code with root privileges on affected Heimdall Data Database Proxy installations, potentially leading to full system compromise.
Mitigation Recommendations
Apply the official fix by upgrading Heimdall Data Database Proxy to version 25.03.01.24 or later. This release addresses the directory traversal vulnerability in the uploadJar method. No additional mitigations are specified.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-479/","fetched":true,"fetchedAt":"2026-07-30T15:56:07.703Z","wordCount":185}
Threat ID: 6a6b74c59c2644c7f84cc2b8
Added to database: 07/30/2026, 15:59:01 UTC
Last enriched: 07/30/2026, 16:05:39 UTC
Last updated: 07/31/2026, 12:28:13 UTC
Views: 7
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