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xxl-job EUVDEUVD-2026-76922

| CVE-2026-90488 LOW
Code Injection (CWE-94)
2026-09-12 VulDB GHSA-x282-35xq-g9q7
RCE Java Code Injection Xxl Job Xuxueli
2.1
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
2.1 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
9.9 CRITICAL

Authenticated network exploit yields unsandboxed Groovy RCE on host; PR:L for required job-creation privilege; S:C because executor process compromise escapes application boundary.

3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
Severity Changed
Sep 13, 2026 - 00:22 NVD
MEDIUM LOW
CVSS changed
Sep 13, 2026 - 00:22 NVD
5.3 (MEDIUM) 2.1 (LOW)
Analysis Generated
Sep 12, 2026 - 23:51 vuln.today
CVE Published
Sep 12, 2026 - 23:15 cve.org
MEDIUM 5.3

DescriptionCVE.org

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.

AnalysisAI

Remote code execution in Xuxueli xxl-job up to version 3.4.2 allows authenticated low-privileged users to execute arbitrary code on the executor host via the GLUE mode Groovy script handler in GlueFactory.java. The root cause is that GroovyClassLoader.parseClass processes attacker-supplied Groovy source directly, compiling and running it without a restrictive sandbox. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid xxl-job account with sufficient privileges to create or modify jobs configured in GLUE execution mode (low-privilege authenticated access; CVSS PR:L). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The official CVSS 4.0 score of 5.3 with VC:L/VI:L/VA:L significantly understates the realistic technical impact; arbitrary Groovy execution without a sandbox equates to full OS-level code execution on the executor process, which is more accurately C:H/I:H/A:H. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No vendor-released patch has been identified at time of analysis; the vendor did not respond to disclosure. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-76922 vulnerability details – vuln.today
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