CRITICALCVE-2026-25526Published Modified CNA GitHub_M
CVE-2026-25526: JinJava Bypass through ForTag leads to Arbitrary Java Execution
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.
Metrics
- CVSS v3.1
- 9.8
- Severity
- CRITICAL
- Fixed in
- —
- Affected Products
- 1
Affected packages
- HubSpot / jinjava< 2.7.6 · < 2.8.3
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HReferences
- https://github.com/HubSpot/jinjava/security/advisories/GHSA-gjx9-j8f8-7j74
- 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