Improper Neutralization of Special Elements Used in a Template Engine Affecting com.hubspot.jinjava:jinjava package, versions [,2.8.1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-COMHUBSPOTJINJAVA-12878604
- published18 Sept 2025
- disclosed17 Sept 2025
- credittaisehub, odgrso
Introduced: 17 Sep 2025
NewCVE-2025-59340 (opens in a new tab)How to fix?
Upgrade com.hubspot.jinjava:jinjava to version 2.8.1 or higher.
Overview
com.hubspot.jinjava:jinjava is a Java-based template engine based on django template syntax, adapted to render jinja templates (at least the subset of jinja in use in HubSpot content).
Affected versions of this package are vulnerable to Improper Neutralization of Special Elements Used in a Template Engine due to using mapper.getTypeFactory().constructFromCanonical() function. An attacker can instantiate arbitrary classes and potentially execute code by supplying crafted input to the deserialization process.