CVE-2026-82531: fallo crítico en smarty-php smarty
Smarty before 4.5.8 and 5.x before 5.8.5 PHP Code Injection via extends: Inheritance Cache
Publicada el
48Vexday Risk Score
Sin señal de explotación. Ella tiene prueba de concepto pública.
ssvc Attendcvss 9.2epss 0.8%
de la publicación al arma1 días
Publicada en NVD6 oct
1ª PoC+1d
probabilidad de explotación
0.8%top 44% de las CVE
explotación observada
noninguna fuente lo reporta
1 exploit(s) público(s)
Smarty before 4.5.8 and 5.x before 5.8.5 contains a code injection vulnerability where the top-level nocache_hash is never restored during extends:/multi-component template inheritance, leaving it null. Attackers can supply assigned data containing a forged SmartyNocache marker that is copied verbatim into the regenerated PHP cache file, executing arbitrary PHP on include for remote code execution.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
smarty-php · smartyPoCs públicas encontradas — 1
githubgithub.com/murrez/CVE-2026-82531★ 1⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
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Referencias
https://github.com/smarty-php/smarty/commit/1cba51cb813563eb61d963c83d28cd59f26b858dhttps://github.com/smarty-php/smarty/commit/c0fdd4824aca4f67e814b50703cfee1dfde41414https://github.com/smarty-php/smarty/releases/tag/v4.5.8https://github.com/smarty-php/smarty/releases/tag/v5.8.5https://github.com/smarty-php/smarty/security/advisories/GHSA-3w63-v7pm-cq9xhttps://www.vulncheck.com/advisories/smarty-before-4.5.8-and-5-x-before-5.8.5-php-code-injection-via-extends-inheritance-cache