Improper Neutralization of Special Elements Used in a Template Engine Affecting wso2is package, versions <7.3.0-r0
Threat Intelligence
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-WSO2IS-16786674
- published21 May 2026
- disclosed4 Feb 2026
Introduced: 4 Feb 2026
CVE-2026-25526 (opens in a new tab)How to fix?
Upgrade Chainguard wso2is to version 7.3.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wso2is package and not the wso2is package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
JinJava is a Java-based template engine based on django template syntax, adapted to render jinja templates. Prior to versions 2.7.6 and 2.8.3, JinJava is vulnerable to arbitrary Java execution via bypass through ForTag. This allows arbitrary Java class instantiation and file access bypassing built-in sandbox restrictions. This issue has been patched in versions 2.7.6 and 2.8.3.
References
- https://github.com/HubSpot/jinjava/commit/3d02e504d8bbb13bf3fe019e9ca7b51dfce7a998
- https://github.com/HubSpot/jinjava/commit/c7328dce6030ac718f88974196035edafef24441
- https://github.com/HubSpot/jinjava/releases/tag/jinjava-2.7.6
- https://github.com/HubSpot/jinjava/releases/tag/jinjava-2.8.3
- https://github.com/HubSpot/jinjava/security/advisories/GHSA-gjx9-j8f8-7j74