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Vulnerability · Published Mar 23, 2025 · Assigned by apache

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

High 7.5

In plain English

A high-severity security flaw in Apache Commons VFS from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.4%top 27.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12commons-vfs2.1-4+deb12u1DEBIAN-CVE-2025-27553
Debian:13commons-vfs2.1-5DEBIAN-CVE-2025-27553
Debian:14commons-vfs2.1-5DEBIAN-CVE-2025-27553
Mavenorg.apache.commons:commons-vfs22.10.0GHSA-9q4x-fr4m-jp86
Ubuntu:22.04:LTScommons-vfsno fix listedUBUNTU-CVE-2025-27553
Ubuntu:24.04:LTScommons-vfsno fix listedUBUNTU-CVE-2025-27553
Ubuntu:25.10commons-vfsno fix listedUBUNTU-CVE-2025-27553
Ubuntu:26.04:LTScommons-vfsno fix listedUBUNTU-CVE-2025-27553
Ubuntu:26.10commons-vfsno fix listedUBUNTU-CVE-2025-27553

Affected products (as reported)

VendorProductVersions
Apache Software Foundation Apache Commons VFS 0 – before 2.10.0

Weakness: CWE-23 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References