Executive brief
XXL-JOB is a popular distributed task scheduling framework used to manage and execute background jobs across multiple servers. A security vulnerability in the job trigger component allows an authorized user to force the management server to send requests to unintended web addresses. This could lead to the exposure of internal network information or the leaking of sensitive access tokens to an attacker-controlled server.
Technical details
A Server-Side Request Forgery (SSRF) vulnerability exists in Xuxueli xxl-job through version 3.3.2. The vulnerability is located in the `triggerJob` function within `xxl-job-admin/src/main/java/com/xxl/job/admin/service/impl/XxlJobServiceImpl.java`. An authenticated attacker with job group permissions can manipulate the `addressList` parameter to force the admin server to initiate HTTP requests to arbitrary URLs via `HttpTool.createClient().url(address)`. This can result in the leakage of the `XXL-JOB-ACCESS-TOKEN` header and job metadata to external servers, or allow scanning of internal network resources. The project maintainer has disputed the severity, noting that the endpoint requires authentication and access control.
Affected products
- Xuxueli xxl-job up to 3.3.2
Timeline
- 2026-03-25: disclosed: Issue and pull request submitted by researcher
- 2026-04-05: other: Maintainer rejected pull request and closed issue, disputing the vulnerability
- 2026-04-28: advisory: Initial disclosure via VulDB and NVD