Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible for a specially crafted request to bypass some rewrite rules. If those rewrite rules effectively enforced security constraints, those constraints could be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.5, from 10.1.0-M1 through 10.1.39, from 9.0.0.M1 through 9.0.102. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

GitHub Security Lab Bug Bounty

The CodeQL Bug Bounty program operated by the GitHub Security Lab aims at scaling the security research community’s work across open source projects. The All For One protects against future vulnerabilities by coding and eradicating a pattern, while the Bug Slayer fixes existing occurrences of this pattern. A bounty hunter can apply to both programs sequentially to maximize their positive impact on open source projects, and their gain.