ZDI-26-479: Heimdall Data Database Proxy uploadJar Directory Traversal Remote Code Execution Vulnerability
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 specific flaw exists within the uploadJar method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-28603.
AI Analysis
Technical Summary
CVE-2026-18274 is a remote code execution vulnerability in Heimdall Data Database Proxy caused by insufficient validation of user-supplied paths in the uploadJar method. Authenticated attackers can exploit this directory traversal flaw to execute arbitrary code as root. The vulnerability has a CVSS score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H). It affects versions prior to 25.03.01.24. The vendor has released a fix in version 25.03.01.24.
Potential Impact
Successful exploitation allows an authenticated remote attacker to execute arbitrary code with root privileges on affected Heimdall Data Database Proxy installations. This can lead to full system compromise, including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
A vendor-provided official fix is available in Heimdall Data Database Proxy version 25.03.01.24. Users should upgrade to this version or later to remediate the vulnerability. Since authentication is required for exploitation, ensure that access controls are properly enforced as an additional precaution until the patch is applied.
ZDI-26-479: Heimdall Data Database Proxy uploadJar Directory Traversal Remote Code Execution Vulnerability
Description
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 specific flaw exists within the uploadJar method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-28603.
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 insufficient validation of user-supplied paths in the uploadJar method. Authenticated attackers can exploit this directory traversal flaw to execute arbitrary code as root. The vulnerability has a CVSS score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H). It affects versions prior to 25.03.01.24. The vendor has released a fix in version 25.03.01.24.
Potential Impact
Successful exploitation allows an authenticated remote attacker to execute arbitrary code with root privileges on affected Heimdall Data Database Proxy installations. This can lead to full system compromise, including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
A vendor-provided official fix is available in Heimdall Data Database Proxy version 25.03.01.24. Users should upgrade to this version or later to remediate the vulnerability. Since authentication is required for exploitation, ensure that access controls are properly enforced as an additional precaution until the patch is applied.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-479/","fetched":true,"fetchedAt":"2026-07-30T15:56:07.703Z","wordCount":185}
- Classification
- {"confidence":0.95,"severitySource":"cvss-text","classifier":"rss-v2"}
Threat ID: 6a6b74c59c2644c7f84cc2b8
Added to database: 07/30/2026, 15:59:01 UTC
Last enriched: 08/15/2026, 05:16:11 UTC
Last updated: 09/14/2026, 22:01:32 UTC
Views: 59
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