# CVE-2021-26119: Sandbox escape through template_object in smarty

Source: https://junglewise.ai/threats/cve-2021-26119-sandbox-escape-through-template-object-in-smarty  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2021-03-02  
License: CC BY 4.0 with a link back

CVE-2021-26119 · Severity: low · CVSS 3.1 · Published 2021-03-02

Sandbox escape through template_object in smarty

Technologies: [smarty/smarty (Packagist)](https://junglewise.ai/threats/technologies/smarty-smarty). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2021-26119 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2021-26119 being exploited in the wild.

**How severe is CVE-2021-26119?** Low severity, with a CVSS score of 3.1, published 2 March 2021.

**Which products and versions are affected?** smarty/smarty (Packagist) ECOSYSTEM:introduced=0,fixed=3.1.39.

**Is there a fix for CVE-2021-26119?** Yes. smarty/smarty (Packagist): upgrade to 3.1.39 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2021-26119?** Check whether you run smarty/smarty (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- smarty/smarty (Packagist): upgrade to 3.1.39 or later

  ```sh
  composer require smarty/smarty:^3.1.39
  ```


## Affected products

- smarty/smarty (Packagist) ECOSYSTEM:introduced=0,fixed=3.1.39

## Identifiers

- CVE-2021-26119
- GHSA-w5hr-jm4j-9jvq

## Related threats

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- [Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to 5.8.2 (and 4.5.](https://junglewise.ai/threats/cve-2026-62992-smarty-symlink-path-traversal-in-security-policy)
- [Smarty vulnerable to PHP Code Injection by malicious attribute in extends-tag](https://junglewise.ai/threats/cve-2024-35226-smarty-vulnerable-to-php-code-injection-by-malicious-attribute-in)
- [smarty Cross-site Scripting vulnerability in Javascript escaping](https://junglewise.ai/threats/cve-2023-28447-smarty-cross-site-scripting-vulnerability-in-javascript-escaping)