VULNERABILITY INTELLIGENCE
CVE-2026-84651
CVSS score6.3 MEDIUM
EPSS probability0.47%
CISA KEVNot currently listed
Published2026-09-02
Last modified2026-09-11
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Description
In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the REST API and CLI endpoints for updating agent configuration do not prevent a submitted configuration from overwriting a different agent by specifying that agent's name in the submitted XML document, allowing attackers with Agent/Configure permission on one agent to take over a different agent, gaining control of its configuration and obtaining access to its inbound agent secret and environment variables.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-284
Primary references
- jenkinsci-cert@googlegroups.com — Vendor Advisory