CVE-2021-21639
Medium
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.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Jenkins
PublishedApr 7, 2021
First seenApr 7, 2021
How to fix
Update
- org.jenkins-ci.main:jenkins-core2.277.2, 2.287 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| jenkins jenkins | v ≤ 2.277.1, v ≤ 2.286 | — |
| org.jenkins-ci.main:jenkins-coreMaven | v < 2.277.2, 2.278 ≤ v < 2.287 | 2.277.2, 2.287 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.