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tomcat8

tomcat9

tomcat10

Apache Tomcat contains a vulnerability in its Rewrite Valve that allows bypassing certain rewrite rules under specific, unlikely configurations. This flaw could enable attackers to circumvent security constraints enforced by these rules. The issue affects multiple Tomcat versions including 8.5.x, 9.0.x, 10.1.x, and 11.0.x series. A patch is available and users are advised to upgrade to fixed versions to mitigate the risk.

CVE-2025-31651 describes an improper neutralization vulnerability in Apache Tomcat's Rewrite Valve. For a subset of unlikely rewrite rule configurations, specially crafted requests could bypass some rewrite rules, potentially allowing attackers to circumvent security constraints that rely on those rules. The affected versions include Apache Tomcat from 11.0.0 through 11.0.5, 10.1.0 through 10.1.39, 9.0.0 through 9.0.102, and 8.5.0 through 8.5.100 (EOL). The vulnerability is addressed in later versions, and users are recommended to upgrade accordingly. The vendor advisory from Ubuntu confirms the issue and indicates that fixes are available via standard system updates or Ubuntu Pro Extended Security Maintenance (ESM) for certain LTS releases.

Detailed information about UBUNTU-CVE-2025-31651 affecting null tomcat8. Get real-time updates, technical details, and mitigation strategies.

UBUNTU-CVE-2025-31651 - Live Threat Intelligence - Threat Radar | OffSeq.com

Apache Tomcat: Bypass of rules in Rewrite Valve (CVE-2025-31651)

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