CVE-2026-70427

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.

Score
CVSS 3.1 4.3 Medium
Status
Analyzed - jenkinsci-cert@googlegroups.com
Published
2026-08-05
Last modified
2026-08-05
Weaknesses
CWE-59

Affected products

References

 
 
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