CVE-2021-26119 Sandbox escape through template_object in smarty
Attackers can execute arbitrary code by escaping the sandbox via template object access in Smarty template engine.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-26119?
CVE-2021-26119 is a high-severity code injection vulnerability in Debian Debian Linux, published on 22 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Smarty before 3.1.39 allows a Sandbox Escape because $smarty.template_object can be accessed in sandbox mode.
Which versions are affected by CVE-2021-26119?
2 open source packages ship an affected version, including smarty/smarty. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
smarty/smarty Packagist | All versions | 3.1.39 |
smarty/smarty Packagist | All versions | 3.1.39 |
Products include Debian Debian Linux, Smarty Smarty.
How do I fix CVE-2021-26119?
Upgrade smarty/smarty to 3.1.39 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-26119 being exploited?
There is no known exploitation of CVE-2021-26119 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2021-26119, GHSA-w5hr-jm4j-9jvq, UBUNTU-CVE-2021-26119.