GHSA-pxgq-gqr9-5gwx
Path traversal vulnerability in Jenkins agent names
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Maven | org.jenkins-ci.main:jenkins-core | < 2.263.2 | 2.263.2 |
| Maven | org.jenkins-ci.main:jenkins-core | >= 2.264, < 2.275 | 2.275 |
Details
As written in the advisory (Markdown source, shown as plain text).
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows users with Agent/Configure permission to choose agent names that cause Jenkins to override unrelated `config.xml` files. If the global `config.xml` file is replaced, Jenkins will start up with unsafe legacy defaults after a restart.
Jenkins 2.275, LTS 2.263.2 ensures that agent names are considered valid names for items to prevent this problem.
In case of problems, this change can be reverted by setting the [Java system property](https://www.jenkins.io/doc/book/managing/system-properties/) `jenkins.model.Nodes.enforceNameRestrictions` to `false`.
References
External links from the advisory. They lead to third-party sites.