high8.1
CVE-2026-82531
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-compo…
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| Smarty | before 4.5.8 |
| 5.X | before 5.8.5 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/smarty-php/smarty/commit/1cba51cb813563eb61d963c83d28cd59f26b858d
- https://github.com/smarty-php/smarty/commit/c0fdd4824aca4f67e814b50703cfee1dfde41414
- https://github.com/smarty-php/smarty/releases/tag/v4.5.8
- https://github.com/smarty-php/smarty/releases/tag/v5.8.5
- https://github.com/smarty-php/smarty/security/advisories/GHSA-3w63-v7pm-cq9x
- https://www.vulncheck.com/advisories/smarty-before-4.5.8-and-5-x-before-5.8.5-php-code-injection-via-extends-inheritance-cache