Is CVE-2026-90487 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-90487 being exploited in the wild.

How severe is CVE-2026-90487?

Medium severity, with a CVSS score of 4.3, published 12 September 2026.

Is there a fix for CVE-2026-90487?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-90487 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-90487?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-90487: Xuxueli xxl-job privilege escalation in JobGroupController

CVE-2026-90487 · Severity: medium · CVSS 4.3 · Published 2026-09-12

xxl-job is a distributed task scheduling framework used by organizations to manage and execute automated jobs across multiple servers. This vulnerability in the job group management controller allows attackers to escalate privileges and manipulate job group configurations without proper authorization, potentially enabling unauthorized job creation, modification, or deletion across the entire scheduling infrastructure.

Quick answers

Is CVE-2026-90487 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-90487 being exploited in the wild.
How severe is CVE-2026-90487?: Medium severity, with a CVSS score of 4.3, published 12 September 2026.
Which products and versions are affected?: Xuxueli xxl-job up to 3.4.2.
Is there a fix for CVE-2026-90487?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-90487 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-90487?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An improper privilege management vulnerability exists in the JobGroupController.java file of xxl-job up to version 3.4.2, specifically in endpoint authentication handling. The loadById endpoint is missing authentication checks, allowing unauthenticated remote attackers to access and potentially modify job group configurations. The vulnerability enables attackers to bypass authorization controls and perform administrative operations on job groups without valid credentials. The exploit code has been publicly disclosed, though the vendor has not responded to early vulnerability notifications. A patch status is not yet available.

Affected products

Xuxueli xxl-job up to 3.4.2

Timeline

2026-09-12: disclosed

References

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