vulnerability

Jenkins Advisory 2021-10-06: CVE-2021-21683: Path traversal vulnerability on Windows

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:P/I:N/A:N)
Published
Oct 6, 2021
Added
Dec 2, 2021
Modified
Aug 11, 2025

Description

The file browser in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier may interpret some paths to files as absolute on Windows, resulting in a path traversal vulnerability allowing attackers with Overall/Read permission (Windows controller) or Job/Workspace permission (Windows agents) to obtain the contents of arbitrary files.

Solutions

jenkins-lts-upgrade-2_303_2jenkins-upgrade-2_315
Title
NEW

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