CVE-2021-21639

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CVSS 3.1

4.3 medium

EPSS

3%p85

Published

Apr 7, 2021 (Apr 7, 2021)

Modified

Jun 17, 2026

Description

Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not validate the type of object created after loading the data submitted to the `config.xml` REST API endpoint of a node, allowing attackers with Computer/Configure permission to replace a node with one of a different type.

Vendors: jenkins
Products: jenkins
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (2.7%)

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