What is CVE-2026-42520?

CVE-2026-42520 is a high-severity vulnerability in Jenkins Credentials_binding, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-04-29.

How severe is CVE-2026-42520?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in Jenkins Credentials_binding

CVE-2026-42520

Jenkins Credentials Binding Plugin 719.v80e905ef14eb_ and earlier does not sanitize file names for file and zip file credentials, allowing attackers able to provide credentials to a job to write files to arbitrary locations on the node fil…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.027 (86.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Jenkins Credentials_binding
Jenkins Project Credentials Binding Plugin — versions 0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

Jenkins Security Advisory 2026-04-29 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-42520?: CVE-2026-42520 is a high-severity vulnerability in Jenkins Credentials_binding, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-04-29.
How severe is CVE-2026-42520?: High severity. CVSS v3 base score is 7.5 out of 10.