CVE-2025-27553

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.

Reserved 2025-03-01 | Published 2025-03-23 | Updated 2025-04-02 | Assigner apache

Problem types

CWE-23 Relative Path Traversal

Product status

Default status
unaffected

Any version before 2.10.0
affected

Credits

Arnout Engelen finder

References

lists.apache.org/thread/cnzqowyw9r2pl263cylmxhnvh41hyjcb vendor-advisory

cve.org (CVE-2025-27553)

nvd.nist.gov (CVE-2025-27553)

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