CVE-2026-43975: Apache Wicket has a Path Traversal issue

May 6, 2026 (updated May 11, 2026)

FolderUploadsFileManager in Apache Wicket does not validate or sanitize the uploadFieldId parameter or the clientFileName before constructing file paths, allowing an unauthenticated attacker to write arbitrary files outside the intended upload directory or read files from arbitrary locations on the server.

This issue affects Apache Wicket: from 8.0.0 through 8.17.0, from 9.0.0 through 9.22.0, from 10.0.0 through 10.8.0.

Users are recommended to upgrade to version 10.9.0, which fixes the issue.

References

github.com/advisories/GHSA-3gmf-p6r4-q8m6
github.com/apache/wicket/commit/72470983f689c61e6a6c0b7388ef955f23bb1e16
github.com/apache/wicket/pull/1432
lists.apache.org/thread/xp2jrdk6ppv1zcmxb4w1mk2lg1dw3hbr
nvd.nist.gov/vuln/detail/CVE-2026-43975

Code Behaviors & Features

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