What is CVE-2026-90488?

CVE-2026-90488 is a medium-severity vulnerability in Xuxueli Xxl-Job, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-09-13.

How severe is CVE-2026-90488?

Medium severity. CVSS v3 base score is 6.3 out of 10.

RCE in Xuxueli Xxl-Job

CVE-2026-90488

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.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Xuxueli Xxl-job — versions 3.4.0, 3.4.1, 3.4.2

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-90488?: CVE-2026-90488 is a medium-severity vulnerability in Xuxueli Xxl-Job, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-09-13.
How severe is CVE-2026-90488?: Medium severity. CVSS v3 base score is 6.3 out of 10.