Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Commons Vfs | < 2.10.0 |
Related Weaknesses (CWE)
References
- https://lists.apache.org/thread/cnzqowyw9r2pl263cylmxhnvh41hyjcbMailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2025/03/23/1Mailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/04/msg00006.html
FAQ
What is CVE-2025-27553?
CVE-2025-27553 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.DESCENDEN...
How severe is CVE-2025-27553?
CVE-2025-27553 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-27553?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Commons Vfs.