CVE-2026-45072

Name	CVE-2026-45072
Description	Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.4.24 until 6.4.40, 7.4.12, and 8.0.12, the development profiler file_excerpt Twig filter escapes PHP files through highlight_string() but interpolates lines from non-PHP files directly into <code> elements, allowing stored XSS against a developer who opens an attacker-written file such as var/log/dev.log in the profiler. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.
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)
References	DSA-6312-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
symfony (PTS)	bullseye	4.4.19+dfsg-2+deb11u6	fixed
	bullseye (security)	4.4.19+dfsg-2+deb11u7	fixed
	bookworm, bookworm (security)	5.4.53+dfsg-0+deb12u1	fixed
	trixie (security), trixie	6.4.41+dfsg-0+deb13u1	fixed
	forky, sid	7.4.14+dfsg-1	fixed

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

Package	Type	Release	Fixed Version	Origin
symfony	source	bullseye	(not affected)
symfony	source	bookworm	(not affected)
symfony	source	trixie	6.4.41+dfsg-0+deb13u1	DSA-6312-1
symfony	source	(unstable)	7.4.12+dfsg-1

Notes

[bookworm] - symfony <not-affected> (Vulnerable code not present)
[bullseye] - symfony <not-affected> (Vulnerable code not present)
https://symfony.com/blog/cve-2026-45072-stored-xss-in-webprofiler-codeextension-fileexcerpt-unescaped-non-php-file-rendering