Description
The Jenkins 2.73.1 and earlier, 2.83 and earlier remote API at /queue/item/(ID)/api showed information about tasks in the queue (typically builds waiting to start). This included information about tasks that the current user otherwise has no access to, e.g. due to lack of Item/Read permission. This has been fixed, and the API endpoint is now only available for tasks that the current user has access to.
Remediation
References
https://jenkins.io/security/advisory/2017-10-11/
Related Vulnerabilities
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CVE-2021-21141 Vulnerability in maven package org.webjars.npm:electron
CVE-2020-7747 Vulnerability in npm package lightning-server
CVE-2017-7957 Vulnerability in maven package xstream:xstream