CVE-2021-21683
Path traversal vulnerability on Windows in Jenkins
6.5
MEDIUM
CVSS 3.1
EPSS 2.1%
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.
How to fix CVE-2021-21683
To remediate CVE-2021-21683, upgrade the affected package to a fixed version below.
- —upgrade to 2.314.1 or later
- —upgrade to 2.303.2 or later
Is CVE-2021-21683 being exploited?
Low — EPSS is 2.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.314.1
- from 0, < 2.303.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |