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CVE-2026-70427

nvd nist
Published: Aug 5, 2026Modified: Sep 8, 2026

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4.3
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Exploitability: 2.8 / Impact: 1.4
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Affected (2)

Products: Jenkins: Jenkins
Jenkins
1 product
Jenkins
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Jenkins
Jenkins
version < 2.576
Jenkins
version < 2.568.2

Related CWEs

CWE-59
Improper Link Resolution Before File Access ('Link Following')
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

References (1)

Source: jenkinsci-cert@googlegroups.com
Vendor Advisory

Timeline

No history available yet.