CVE-2026-84651

medium

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…

Vendor / product: Jenkins — jenkins

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

6.3 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Severity source: NVD CVSS v3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)

Timeline (UTC)

Published: 2026-09-02 16:17

Modified: 2026-09-11 21:16

NVD status: Analyzed

Last synced 2 days ago

Verified against the source API 2026-10-27 06:50 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

jenkins / jenkins <2.568.3, <2.580

Weakness classification (CWE)

CWE-284

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4025

References

https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4025 jenkinsci-cert@googlegroups.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:50 UTC · record ↗

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CVE-2026-84651

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Weakness classification (CWE)

Mitigation & advisories

References

Data sources

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