Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to a login command which allowed impersonating any Jenkins user. The `login` command available in the remoting-based CLI stored the encrypted user name of the successfully authenticated user in a cache file used to authenticate further commands. Users with sufficient permission to create secrets in Jenkins, and download their encrypted values (e.g. with Job/Configure permission), were able to impersonate any other Jenkins user on the same instance.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jan 29, 2018 |
| Freebsd | — | Upgrade jenkinsUpgrade jenkins-lts | Dec 10, 2025 | Apr 27, 2017 |
| Jenkins 2017 04 26 | — | Upgrade Jenkins LTS to version 2.46.2Upgrade Jenkins LTS to the latest versionUpgrade Jenkins to the latest versionUpgrade Jenkins to version 2.57 | Jan 29, 2018 | Jan 29, 2018 |
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