CVE-2026-90488: Xuxueli xxl-job GlueFactory.java GroovyClassLoader.parseClass code injection

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-13 · updated 2026-09-15
Weakness: CWE-74

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.

Affected products

Xuxueli xxl-job: 3.4.0, 3.4.1, 3.4.2

References

https://github.com/zhaizejiang/xxl-job-vuln-poc/blob/main/xxl-job%20v3.4.2%20Remote%20Code%20Execution%20via%20Groovy%20Code%20Execution.md
https://vuldb.com/cve/CVE-2026-90488
https://vuldb.com/submit/888470
https://vuldb.com/vuln/403076
https://vuldb.com/vuln/403076/cti

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