What is CVE-2026-84671?

CVE-2026-84671 is a high-severity vulnerability in Jenkins Project File Parameter Plugin, classified under Path Traversal. CVSS score: 8.8/10. Published 2026-09-02.

How severe is CVE-2026-84671?

High severity. CVSS v3 base score is 8.8 out of 10.

Path Traversal in Jenkins Project File Parameter Plugin

CVE-2026-84671

Jenkins File Parameter Plugin 425.v3fa_801681b_5e and earlier allows writing files to arbitrary locations on the Jenkins controller file system through Stapler data binding, which can lead to remote code execution.

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Jenkins Project File Parameter Plugin

Weakness classification (CWE)

CWE-22 — Path Traversal

References

jenkinsci-cert@googlegroups.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-84671?: CVE-2026-84671 is a high-severity vulnerability in Jenkins Project File Parameter Plugin, classified under Path Traversal. CVSS score: 8.8/10. Published 2026-09-02.
How severe is CVE-2026-84671?: High severity. CVSS v3 base score is 8.8 out of 10.