High
commons-vfs — security advisory
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.
- Products
- commons-vfs
- Affected versions
- 2.0-3ubuntu1, 2.0-7ubuntu1, 2.1-1, 2.1-2, 2.1-4, 2.1-5
- Fixed versions
- Not specified
- CVEs
- CVE-2025-27553
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:26 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2025-27553
commons-vfs
Fixed versions: Not specified
commons-vfs
Fixed versions: Not specified
commons-vfs
Fixed versions: Not specified
commons-vfs
Fixed versions: Not specified
commons-vfs
Fixed versions: Not specified
commons-vfs
Fixed versions: Not specified
commons-vfs
Fixed versions: Not specified
commons-vfs
Fixed versions: Not specified
Complete source record
{
"id": "031c9d1182aeb4fa4064d324e0d57d2db07a3665ef49e4557cfe0f73ac2b0308",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-27553",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-27553",
"summary": "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.",
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"metrics": [
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"modified": "2026-10-17T12:56:49.535025456Z",
"provider": "osv",
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"references": [
"https://ubuntu.com/security/CVE-2025-27553",
"https://www.cve.org/CVERecord?id=CVE-2025-27553",
"https://www.openwall.com/lists/oss-security/2025/03/23/1",
"https://lists.apache.org/thread/cnzqowyw9r2pl263cylmxhnvh41hyjcb"
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"security_relevant": true,
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"source_id": "core-osv",
"document_id": 356396,
"published_at": "2025-03-23T15:15:00+00:00"
}