CVE-2026-84651In 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 s…
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It affects Jenkins Project Jenkins and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- Weakness (CWE)
- CWE-284
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- jenkins
- NVD analysis
- Analyzed
- Record last updated
- Sep 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Jenkins Project Jenkins jenkins_project:jenkins (from the name) | from 2.580 not affected; 2.568.3 builds before 2.568.* not affected | CNA record |
jenkins jenkins jenkins:jenkins | before 2.568.3; before 2.580 | NVD |
References
- https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4025vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.