CVE-2026-25526

Published: Feb 4, 2026Modified: Jun 17, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: security-advisories@github.com (Secondary)

Description

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.

Affected (2)

Products: Hubspot: Jinjava

1 product

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Hubspot Jinjava	Before 2.7.6
Hubspot Jinjava	From 2.8.0 to 2.8.3

Related CWEs

Improper Neutralization of Special Elements Used in a Template Engine

The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.

References (5)

https://github.com/HubSpot/jinjava/commit/3d02e504d8bbb13bf3fe019e9ca7b51dfce7a998

Source: security-advisories@github.com

Patch

https://github.com/HubSpot/jinjava/commit/c7328dce6030ac718f88974196035edafef24441

Source: security-advisories@github.com

Patch

https://github.com/HubSpot/jinjava/releases/tag/jinjava-2.7.6

Source: security-advisories@github.com

ProductRelease Notes

https://github.com/HubSpot/jinjava/releases/tag/jinjava-2.8.3

Source: security-advisories@github.com

ProductRelease Notes

https://github.com/HubSpot/jinjava/security/advisories/GHSA-gjx9-j8f8-7j74

Source: security-advisories@github.com

PatchVendor Advisory

Timeline

No history available yet.