Vulnerability · Published Oct 12, 2026 · Assigned by VulnCheck
CVE-2026-109347Adminer before 6.1.1 RCE via UTF-8 BOM SQLite ATTACH Bypass
High 7.2
In plain English
A high-severity code injection in adminer from vrana. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 58% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Adminer before 6.1.1 contains a remote code execution vulnerability that allows authenticated SQLite users to bypass ATTACH and VACUUM INTO restrictions by prefixing statements with a UTF-8 byte-order mark. Attackers can attach a database file at a PHP-served path and create a table named with PHP code to execute it as the web server user.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | adminer | no fix listed | DEBIAN-CVE-2026-109347 |
| Debian:13 | adminer | no fix listed | DEBIAN-CVE-2026-109347 |
| Debian:14 | adminer | 6.1.1-1 | DEBIAN-CVE-2026-109347 |
| Ubuntu:22.04:LTS | adminer | no fix listed | UBUNTU-CVE-2026-109347 |
| Ubuntu:24.04:LTS | adminer | no fix listed | UBUNTU-CVE-2026-109347 |
| Ubuntu:26.04:LTS | adminer | no fix listed | UBUNTU-CVE-2026-109347 |
| Ubuntu:26.10 | adminer | no fix listed | UBUNTU-CVE-2026-109347 |
Affected products (as reported)
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
- GitHub Security Advisory (GHSA-r9r5-j5q8-8c59) vendor-advisory
- VulnCheck Advisory: Adminer before 6.1.1 RCE via UTF-8 BOM SQLite ATTACH Bypass third-party-advisory