CVE-2021-21646

Published: Apr 21, 2021Modified: Jun 17, 2026

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

Description

Jenkins Templating Engine Plugin 2.1 and earlier does not protect its pipeline configurations using Script Security Plugin, allowing attackers with Job/Configure permission to execute arbitrary code in the context of the Jenkins controller JVM.

Affected (1)

Products: Jenkins: Templating Engine

Jenkins

1 product

Templating Engine

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Jenkins Templating Engine	Up to 2.1

References (4)

http://www.openwall.com/lists/oss-security/2021/04/21/2

Source: jenkinsci-cert@googlegroups.com

Mailing ListThird Party Advisory

https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2311

Source: jenkinsci-cert@googlegroups.com

Vendor Advisory

http://www.openwall.com/lists/oss-security/2021/04/21/2

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2311

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.