CVE-2025-59340
jinjava is a Java-based template engine based on django template syntax, adapted to render jinja templates. Priori to 2.8.1, by using mapper.getTypeFactory().constructFromCanonical(), it is possible to instruct the underlying ObjectMapper to deserialize attacker-controlled input into arbitrary classes. This enables the creation of semi-arbitrary class instances without directly invoking restricted methods or class literals. As a result, an attacker can escape the sandbox and instantiate classes such as java.net.URL, opening up the ability to access local files and URLs(e.g., file:///etc/passwd). With further chaining, this primitive can potentially lead to remote code execution (RCE). This vulnerability is fixed in 2.8.1.
| Software | From | Fixed in |
|---|---|---|
com.hubspot.jinjava / jinjava
|
2.8.0 | 2.8.0.x |
|
com.hubspot.jinjava / jinjava
|
2.8.0 | 2.8.1 |
|
com.hubspot.jinjava / jinjava
|
- | 2.7.5 |
| hubspot / jinjava | - | 2.8.1 |
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