CVE-2026-27475

NameCVE-2026-27475
DescriptionSPIP before 4.4.9 allows Insecure Deserialization in the public area through the table_valeur filter and the DATA iterator, which accept serialized data. An attacker who can place malicious serialized content (a pre-condition requiring prior access or another vulnerability) can trigger arbitrary object instantiation and potentially achieve code execution. The use of serialized data in these components has been deprecated and will be removed in SPIP 5. This vulnerability is not mitigated by the SPIP security screen.
SourceCVE (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 PackageReleaseVersionStatus
spip (PTS)bullseye3.2.11-3+deb11u10vulnerable
bullseye (security)3.2.11-3+deb11u7vulnerable
trixie4.4.3+dfsg-1+deb13u1vulnerable
forky4.4.8+dfsg-1vulnerable
sid4.4.9+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
spipsource(unstable)4.4.9+dfsg-1

Notes

https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html

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