CVE-2026-77647

Name	CVE-2026-77647
Description	SPIP before 4.4.20 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to incorrect identification of <?php blocks, and var_export's mishandling of certain cases such as presence of a '<' character.
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-6448-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
spip (PTS)	bullseye	3.2.11-3+deb11u10	vulnerable
	bullseye (security)	3.2.11-3+deb11u7	vulnerable
	trixie	4.4.15+dfsg-0+deb13u1	vulnerable
	trixie (security)	4.4.20+dfsg-0+deb13u1	fixed
	forky	4.4.19+dfsg-1	vulnerable
	sid	4.4.21+dfsg-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
spip	source	trixie	4.4.20+dfsg-0+deb13u1		DSA-6448-1
spip	source	(unstable)	4.4.20+dfsg-1

https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-20.html