Description
Apache Tapestry up to version 5.8.1 is vulnerable to Regular Expression Denial of Service (ReDoS) in the way it handles Content Types. Specially crafted Content Types may cause catastrophic backtracking, taking exponential time to complete. Specifically, this is about the regular expression used on the parameter of the org.apache.tapestry5.http.ContentType class. Apache Tapestry 5.8.2 has a fix for this vulnerability. Notice the vulnerability cannot be triggered by web requests in Tapestry code alone. It would only happen if there's some non-Tapestry codepath passing some outside input to the ContentType class constructor.
Remediation
References
https://www.openwall.com/lists/oss-security/2022/07/12/3
Related Vulnerabilities
CVE-2020-2214 Vulnerability in maven package org.jenkins-ci.plugins:zap-pipeline
CVE-2022-28731 Vulnerability in maven package org.apache.jspwiki:jspwiki-main
CVE-2022-31175 Vulnerability in npm package @ckeditor/ckeditor5-html-support
CVE-2021-23470 Vulnerability in npm package putil-merge
CVE-2022-38369 Vulnerability in maven package org.apache.iotdb:iotdb-server