CVE-2026-84667

High

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.

SeverityHigh

CVSS7.1

Exploit probability—

ProductJenkins ThinBackup Plugin

PublishedSep 2, 2026

First seenSep 2, 2026

Weakness typeCWE-22Path traversal

How to fix

Vendor advisories

jenkins.io/security/advisory/2026-09-02/#SECURITY-4099

Affected products

Product	Affected versions	Fixed in
Jenkins Project Jenkins ThinBackup Plugin	v ≤ 2.1.4	—

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