CVE-2025-27553

Apache Commons VFS: Possible path traversal issue when using NameScope.DESCENDENT

CVSS 7.5 HIGHEPSS 1.3%CWE-23

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 1.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

23 Mar 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Apache Software Foundation · Apache Commons VFS

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References

https://lists.apache.org/thread/cnzqowyw9r2pl263cylmxhnvh41hyjcb https://lists.debian.org/debian-lts-announce/2025/04/msg00006.html http://www.openwall.com/lists/oss-security/2025/03/23/1