# CVE-2026-15686: adminer: Adminer multi_query Incorrect Check of Function Return Value Remote Code Execution Vulnerability

CVE-2026-15686 is fixed in adminer on 1 platform by DEBIAN-CVE-2026-15686 (version 5.4.3+dfsg-1), released August 22, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-15686
- Priority: High
- CVSS: 7.2 (high)
- EPSS: 0.0109
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 20, 2026

## Description

Adminer multi_query Incorrect Check of Function Return Value Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adminer. Authentication is required to exploit this vulnerability.  The specific flaw exists within the multi_query method. The issue results from an incorrect check of a function return value. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-28201.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | adminer Debian 14 | 5.4.3+dfsg-1 | [DEBIAN-CVE-2026-15686](https://patchblox.com/security/data/fix/linux/debian-cve-2026-15686.md) | Aug 22, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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