CVE-2026-56704

Name	CVE-2026-56704
Description	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
adminer (PTS)	bullseye	4.7.9-2	vulnerable
	bookworm	4.8.1-1	vulnerable
	trixie	5.2.1+dfsg-1	vulnerable
	forky, sid	6.0.0-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
adminer	source	(unstable)	5.4.3+dfsg-1

https://github.com/vrana/adminer/security/advisories/GHSA-h6jr-7pr6-grgj