CVE-2026-84667

ThinBackup Plugin Backup Configuration Overwrite Vulnerability

Published Sep 2, 2026 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
Jenkins ThinBackup Plugin 2.1.4 and earlier allows overwriting the plugin's backup configuration through Stapler data binding, allowing attackers to redirect backup writes to an attacker-specified directory and to include arbitrary files from the Jenkins controller file system in backups.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Jenkins Project
Jenkins Project jenkins Thinbackup Plugin
Vendors & Products Jenkins Project
Jenkins Project jenkins Thinbackup Plugin
Type Values Removed Values Added
Title ThinBackup Plugin Backup Configuration Overwrite Vulnerability
Type Values Removed Values Added
Weaknesses CWE-22
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Jenkins ThinBackup Plugin 2.1.4 and earlier allows overwriting the plugin's backup configuration through Stapler data binding, allowing attackers to redirect backup writes to an attacker-specified directory and to include arbitrary files from the Jenkins controller file system in backups.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
jenkins
Published
Updated
Sep 2, 2026, 5:02 PM
Reserved
Sep 1, 2026, 9:55 PM
Status
Awaiting Analysis
Published
Sep 2, 2026, 4:17 PM
Modified
Sep 3, 2026, 5:13 PM