Vulnerability · Published Apr 21, 2021 · Assigned by jenkins
CVE-2021-21646
High 8.8
In plain English
A high-severity security flaw in Jenkins Templating Engine Plugin from Jenkins project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 78% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.7%top 22.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.jenkins-ci.plugins:templating-engine | 2.2 | GHSA-p6qc-37hq-wqr6 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins project | Jenkins Templating Engine Plugin | unspecified – through 2.1 |
References
- https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2311 x_refsource_CONFIRM
- [oss-security] 20210421 Multiple vulnerabilities in Jenkins plugins mailing-list, x_refsource_MLIST