CVE-2026-55799: Apache Ranger: Remote Code Execution Vulnerability in GraalScriptEngineCreator

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-10 · updated 2026-10-24
Weakness: CWE-94

Description

Remote Code Execution Vulnerability in GraalScriptEngineCreator in Apache Ranger <= 2.8.0 Users are recommended to upgrade to version 2.9.0, which fixes this issue.

Affected products

Apache Software Foundation Apache Ranger: before 2.9.0 — fixed in 2.9.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Ranger 2.9.0. Check the vendor advisory for mitigations.

References

https://lists.apache.org/thread/mqpdrqrvd47x5vhy03xok4ylbo9wbqgj
http://www.openwall.com/lists/oss-security/2026/08/09/7

Get alerted when CVE-2026-55799 or the next vulnerability affects your stack