CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2026-25526
Critical (9.8) in hubspot jinjava. EPSS 1.0% chance of exploitation in the next 30 days. Fixed in com.hubspot.jinjava:jinjava 2.7.6, 2.8.3.
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.
Severity
- EPSS
- 1.0% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)
- CWE
- CWE-1336
- Published
- Modified
- Record from
- the NVD, synced
Affected
- hubspot:jinjava
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-gjx9-j8f8-7j74 | Maven | com.hubspot.jinjava:jinjava | >=2.8.0 <2.8.3 | 2.8.3 |
| GHSA-gjx9-j8f8-7j74 | Maven | com.hubspot.jinjava:jinjava | <2.7.6 | 2.7.6 |
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