Vulnerability in Jenkins Templating Engine

CVE-2021-21646

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.

EPSS: 0.017 (75.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

References

Frequently asked questions

What is CVE-2021-21646?
CVE-2021-21646 is a high-severity vulnerability in Jenkins Templating Engine. CVSS score: 8.8/10. Published 2021-04-21.
How severe is CVE-2021-21646?
High severity. CVSS v3 base score is 8.8 out of 10.