Medium severity · published Sep 12, 2026
CVE-2026-90488
Xuxueli xxl-job GlueFactory.java GroovyClassLoader.parseClass code injection
6.3
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XX
xxl-job · Xuxueli
3.4.0; 3.4.1; 3.4.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90488
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-90488
github.com
https://github.com/zhaizejiang/xxl-job-vuln-poc/blob/main/xxl-job%20v3.4.2%20Remote%20Code%20Execution%20via%20Groovy%20Code%20Execution.md
vuldb.com
https://vuldb.com/cve/CVE-2026-90488
vuldb.com
https://vuldb.com/submit/888470
vuldb.com
https://vuldb.com/vuln/403076
vuldb.com
https://vuldb.com/vuln/403076/cti
More from xxl-job
9.8
CVE-2024-3366
Xuxueli xxl-job Template JdkSerializeTool.java deserialize injection
9.8
CVE-2022-40929
XXL-JOB 2.2.0 has a Command execution vulnerability in background tasks
8.8
CVE-2025-7788
Xuxueli xxl-job SampleXxlJob.java commandJobHandler os command injection
8.8
CVE-2025-7787
Xuxueli xxl-job SampleXxlJob.java httpJobHandler server-side request forgery
8.8
CVE-2024-42681
Insecure Permissions vulnerability in xxl-job v.2.4.1 allows a remote attacker to execute arbitrary code via the Sub-Task ID component