CVE-2026-82531
highSmarty 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-compo…
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/smarty-php/smarty/commit/1cba51cb813563eb61d963c83d28cd59f26b858d disclosure@vulncheck.com
- https://github.com/smarty-php/smarty/commit/c0fdd4824aca4f67e814b50703cfee1dfde41414 disclosure@vulncheck.com
- https://github.com/smarty-php/smarty/releases/tag/v4.5.8 disclosure@vulncheck.com
- https://github.com/smarty-php/smarty/releases/tag/v5.8.5 disclosure@vulncheck.com
- https://github.com/smarty-php/smarty/security/advisories/GHSA-3w63-v7pm-cq9x disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/smarty-before-4.5.8-and-5-x-before-5.8.5-php-code-inj... disclosure@vulncheck.com
- https://github.com/smarty-php/smarty/security/advisories/GHSA-3w63-v7pm-cq9x 134c704f-9b21-4f2e-91b3-4a467353bcc0