CVE-2026-62996

Name	CVE-2026-62996
Description	Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. From 5.0.0 until 5.8.4, Smarty's stream: resource-name handling does not adequately restrict which PHP stream wrappers and filter chains can be referenced from a template, allowing a php://filter-wrapped resource name to be used to read the contents of arbitrary local files accessible to the PHP process. An attacker able to author or influence a template's resource reference could exploit this to disclose sensitive file contents outside the intended template/config scope. This issue is fixed in version 5.8.4.
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
smarty3 (PTS)	bookworm, bookworm (security)	3.1.47-2+deb12u1	fixed
	forky, sid, trixie	3.1.48-2	fixed
smarty4 (PTS)	bookworm, bookworm (security)	4.3.0-1+deb12u2	fixed
	forky, sid, trixie	4.5.5-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
smarty3	source	(unstable)	(not affected)
smarty4	source	(unstable)	(not affected)

Notes

- smarty4 <not-affected> (Vulnerable code not present)
- smarty3 <not-affected> (Vulnerable code not present)
https://github.com/smarty-php/smarty/security/advisories/GHSA-rjhh-76wf-8xmw
https://github.com/smarty-php/smarty/pull/1195
Fixed by: https://github.com/smarty-php/smarty/commit/3c9f77a2e06ce319ae0092496af32cc8f3adc52e (v5.8.4)