ZDI-26-479: Heimdall Data Database Proxy uploadJar Directory Traversal Remote Code Execution Vulnerability
Source Zero Day Initiative
Not known to be exploited · CVSS 7.2 High · patch available : patch Database Proxy soon.
Data as of 5 Nov 2026, 23:24 UTC
- EPSS
- 2.0% chance of exploitation in 30 days – higher than 81% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 20 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Heimdall DataDatabase Proxy | Affected
| Fixed in– |
AI-suggested
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.
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.