CVE-2026-90488 Xuxueli xxl-job GlueFactory.java GroovyClassLoader.parseClass code injection
Remote attackers can execute arbitrary code via GroovyClassLoader in xxl-job, requiring permissions but posing a critical risk to job scheduling systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-90488?
CVE-2026-90488 is a medium-severity code injection vulnerability in Xuxueli xxl-job, published on 12 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was determined in Xuxueli xxl-job up to 3.4.2. This affects the function GroovyClassLoader.parseClass of the file xxl-job-core/src/main/java/com/xxl/job/core/glue/GlueFactory.java. This manipulation causes code injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-90488?
How do I fix CVE-2026-90488?
No fix has been published for CVE-2026-90488 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-90488 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90488 exists.
Sources
Also known as GHSA-x282-35xq-g9q7.