CVE-2026-84656

Medium

Description

A missing permission check in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier allows attackers with Item/Read permission on at least one job to read build parameter names and values of jobs they have no access to.

SeverityMedium

CVSS4.3

Exploit probability—

Product

Jenkins

PublishedSep 2, 2026

First seenSep 2, 2026

Weakness typeCWE-862Missing authorization

How to fix

Vendor advisories

jenkins.io/security/advisory/2026-09-02/#SECURITY-4006

Affected products

Product	Affected versions	Fixed in
jenkins jenkins	v ≤ 2.568.2, v ≤ 2.579	—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.