Critical

Improper Control of Generation of Code ('Code Injection') in jai-ext

  • Disclosed: 19.09.2023
  • Updated: 11.10.2026 12:22

CISA confirms exploitation of this vulnerability in real attacks. Prioritise checking whether your application is affected. CISA KEV · CC0 1.0

Impact

Programs using jt-jiffle, and allowing Jiffle script to be provided via network request, are susceptible to a Remote Code Execution as the Jiffle script is compiled into Java code via Janino, and executed. In particular, this affects the downstream GeoServer project.

Patches

Version 1.2.22 will contain a patch that disables the ability to inject malicious code into the resulting script.

Workarounds

Negate the ability to compile Jiffle scripts from the final application, by removing janino-x.y.z.jar from the classpath.

References

None.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) it.geosolutions.jaiext.jiffle:jt-jiffle < 1.1.22 1.1.22
Java / Kotlin (Maven) it.geosolutions.jaiext.jiffle:jt-jiffle-language < 1.1.22 1.1.22

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H
Weakness (CWE)
CWE-94
Platform
Java / Kotlin (Maven)
Package
it.geosolutions.jaiext.jiffle:jt-jiffle, it.geosolutions.jaiext.jiffle:jt-jiffle-language
Disclosed
19.09.2023
Updated
11.10.2026 12:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-v92f-jx6p-73rx - CC BY 4.0

Vulnerability history: it.geosolutions.jaiext.jiffle:jt-jiffle-language

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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