CVE-2025-31651 PoC — Apache Tomcat: Bypass of rules in Rewrite Valve

Title:Apache Tomcat: Bypass of rules in Rewrite Valve (CVE-2025-31651)
Description: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. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

CVE Discovered by Greg K

# CVE-2025-31651
CVE Discovered by Greg K

## 0x01 Status
Privately, waiting for official disclosure

## 0x02 PoC

## 0x03 Finder
This cve is identified by [Greg K](https://github.com/gregk4sec)

 [4.0K]  /data/pocs/bafbcadc3982ba0d7ebd7f9df30a4ec72b771cf3
├── [ 11K]  LICENSE
└── [ 195]  README.md

0 directories, 2 files