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CVE-2026-25526

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/4/2026

Last Modified2/20/2026

Sourcenvd

Honeypot Sightings0

Affected Products

hubspot:jinjava

Weaknesses (CWE)

CWE-1336

References

https://github.com/HubSpot/jinjava/commit/3d02e504d8bbb13bf3fe019e9ca7b51dfce7a998(security-advisories@github.com)

https://github.com/HubSpot/jinjava/commit/c7328dce6030ac718f88974196035edafef24441(security-advisories@github.com)

https://github.com/HubSpot/jinjava/releases/tag/jinjava-2.7.6(security-advisories@github.com)

https://github.com/HubSpot/jinjava/releases/tag/jinjava-2.8.3(security-advisories@github.com)

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

IOC Correlations

No correlations recorded

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