Critical Path Equivalence Vulnerability (CVE‑2025‑24813) in Apache Tomcat Enables Remote Code Execution
What It Is — Apache Tomcat suffers a path‑equivalence flaw that lets a remote attacker send a crafted partial PUT request to execute code, read files, or inject malicious content. The issue can be chained with CVE‑2026‑34486 for deeper compromise.
Exploitability — Publicly disclosed; proof‑of‑concept code is available. CVSS v3.1 base score 9.8 (Critical).
Affected Products — Apache Tomcat 9.0.x through 10.1.x (all supported releases at time of advisory).
Why It Matters for Trust & Control Assurance
- Demonstrates the need for continuous secure‑configuration monitoring and evidence that application servers are patched to the latest safe version.
- Highlights a gap in change‑management controls: without documented approval and verification of configuration changes, a partial request can bypass intended safeguards.
- Provides a concrete audit‑ready data point for regulators and enterprise buyers demanding proof of defensible remediation processes.
Recommended Actions
- Identify all Tomcat instances and their exact version via inventory tools.
- Apply the Apache‑released patches for CVE‑2025‑24813 immediately; verify patch integrity.
- Harden Tomcat configuration: enforce strict HTTP method controls, disable unnecessary PUT handling, and enable request‑validation filters.
- Integrate Tomcat patch status into your continuous control monitoring platform to generate real‑time compliance evidence.
- Update incident‑response playbooks to include detection of anomalous partial‑PUT traffic.
Source: CISA KEV – CVE‑2025‑24813