GeoServer Infinite Loop Vulnerability in Jiffle process
Summary
Malicious Jiffle scripts can be executed by GeoServer, either as a rendering transformation in WMS dynamic styles or as a WPS process, that can enter an infinite loop to trigger denial of service.
Details
The Jiffle language supports multiple loop constructs that will cause its code block to be continuously executed until a certain condition is met. The Jiffle runtime should be updated to throw an exception if the script exceeds a certain number of loop iterations.
Impact
This vulnerability allows attackers to conduct denial-of-service attacks.
Mitigation
This vulnerability can be mitigated by disabling WMS dynamic styling (see WMS Settings). If the WPS extension is installed, the Jiffle process must also be disabled to mitigate this vulnerability (see WPS Settings)
References
https://github.com/geosolutions-it/jai-ext/pull/307 https://osgeo-org.atlassian.net/browse/GEOS-11778
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.geoserver.extension:gs-wps-core | >= 2.26.0, < 2.26.3, < 2.25.7 | 2.26.3, 2.25.7 |
| Java / Kotlin (Maven) | org.geoserver:gs-wms | >= 2.26.0, < 2.26.3, < 2.25.7 | 2.26.3, 2.25.7 |
| Java / Kotlin (Maven) | org.geoserver.web:gs-web-app | >= 2.26.0, < 2.26.3, < 2.25.7 | 2.26.3, 2.25.7 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-835- Platform
- Java / Kotlin (Maven)
- Package
org.geoserver.extension:gs-wps-core, org.geoserver:gs-wms, org.geoserver.web:gs-web-app- Disclosed
- 10.06.2025
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-gr67-pwcv-76gf - CC BY 4.0
Vulnerability history: org.geoserver.web:gs-web-app
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.
- Total entries
- 16
- First → latest
- 10.2023 08.2026
- Without a fix
- 0
- Exploited in attacks
- 2
Severity breakdown
- Critical 2
- High 6
- Medium 8
Disclosures per year
- 2023: 1
- 2024: 4
- 2025: 8
- 2026: 3
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GeoServer Infinite Loop Vulnerability in Jiffle process this entry
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