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Apache Tapestry 3.x allows deserialization of untrusted data, leading to remote code execution. This issue is similar to but distinct from CVE-2020-17531, which applies the the (also unsupported) 4.x version line. NOTE: This vulnerability only affects Apache Tapestry version line 3.x, which is no longer supported by the maintainer. Users are recommended to upgrade to a supported version line of Apache Tapestry. https://lists.apache.org/thread/bwn1vjrvz1hq0wbdzj23wz322244swhj http://www.openwall.com/lists/oss-security/2022/12/02/1
All versions of Tapestry used are 4.0.2+ which is beyond the versions that this vulnerability exists in.