Relative Path Traversal vulnerability in Apache Commons VFS before 2.10.0.
The FileObject API in Commons VFS has a 'resolveFile' method that takes a 'scope' parameter. Specifying 'NameScope.DESCENDENT' promises that "an exception is thrown if the resolved file is not a descendent of the base file". However, when the path contains encoded ".." characters (for example, "%2E%2E/bar.txt"), it might return file objects that are not a descendent of the base file, without throwing an exception. This issue affects Apache Commons VFS: before 2.10.0.
Users are recommended to upgrade to version 2.10.0, which fixes the issue.
{
"github_reviewed_at": "2025-03-25T03:21:09Z",
"github_reviewed": true,
"severity": "HIGH",
"nvd_published_at": "2025-03-23T15:15:13Z",
"cwe_ids": [
"CWE-23"
]
}