adminer: Adminer before 5.4.3 inserts unsanitized database server version strings into script tags with valid CSP nonces witho...
CVE-2026-56704 is fixed in adminer on 1 platform by DEBIAN-CVE-2026-56704 (version 5.4.3+dfsg-1), released August 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Adminer before 5.4.3 inserts unsanitized database server version strings into script tags with valid CSP nonces without proper validation. Attackers controlling a rogue MySQL server can return crafted version strings that break out of the JavaScript context and execute arbitrary code, bypassing Content Security Policy protections.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| adminer · Debian 14 | 5.4.3+dfsg-1 | DEBIAN-CVE-2026-56704 | Aug 27, 2026 |
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