CVE-2025-27553 — Apache Commons VFS: Possible path traversal issue when using NameScope.DESCENDENT

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Commons VFS	affected 0 before 2.10.0

CWE

CWE-23

References

https://lists.apache.org/thread/cnzqowyw9r2pl263cylmxhnvh41hyjcb

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2025/03/23/1
https://lists.debian.org/debian-lts-announce/2025/04/msg00006.html

CISA-ADP

No English description supplied.

No references supplied.