CVE-2026-70427
- State
- Published
- Severity
- 4.3 Medium
- Published
- Aug 5, 2026
- Updated
- Aug 5, 2026
- Reserved
- Aug 4, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
Affected Products
| Product | Versions |
|---|---|
JenkinsJenkins Project |
|
References
- Jenkins Security Advisory 2026-08-05vendor-advisory
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