CVE-2026-70427

MediumCVSS 4.3/10Last modified Sep 8, 2026

Description

Jenkins 2.575 and earlier, LTS 2.568.1 and earlier does not safely handle symbolic links with effectively empty names during the extraction of `.tar` and `.tar.gz` archives, allowing attackers able to control agent processes to provide crafted archives to the controller to write files to arbitrary locations on the file system, restricted only by file system access permissions of the user running Jenkins.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-59

Affected software

No affected versions have been published.

Timeline

Published: Aug 5, 2026
Last modified: Sep 8, 2026
NVD status: Analyzed

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