AUGUST 4, 2026
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Case File

CVE-2021-21639

MEDIUM · CVSS 4.3 EPSS 2.73%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-07 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. It affects Jenkins.

CVE
CVE-2021-21639
Severity
MEDIUM
CVSS
4.3
EPSS
2.73%
Jenkins

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)