CVE-2021-22867

Name of the Vulnerable Software and Affected Versions GitHub Enterprise Server versions prior to 3.1.3 GitHub Enterprise Server version 3.0.11 and earlier GitHub Enterprise Server version 2.22.17 and earlier

Description A path traversal issue was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled configuration options used by GitHub Pages were not sufficiently restricted, making it possible to read files on the GitHub Enterprise Server instance. To exploit this issue, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance.

Recommendations For GitHub Enterprise Server versions prior to 3.1.3, update to version 3.1.3 or later. For GitHub Enterprise Server versions prior to 3.0.11, update to version 3.0.11 or later. For GitHub Enterprise Server versions prior to 2.22.17, update to version 2.22.17 or later.