Jenkins ThinBackup Plugin 2.1.4 and earlier improperly permits modification of its backup configuration through Stapler data binding. An attacker can overwrite backup settings to redirect backup output to an attacker-selected controller-accessible directory and configure backups to include arbitrary files from the Jenkins controller file system.
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A Stapler data-binding vulnerability in Jenkins ThinBackup Plugin 2.1.4 and earlier that enables attackers to overwrite backup configuration, redirect backup output to an attacker-controlled directory, and include arbitrary files from the Jenkins controller filesystem in backups.
A Jenkins plugin vulnerability referenced by the 2026-09-02 Jenkins security advisory; technical details are not provided.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.