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CVE-2025-48989: Critical Resource Shutdown Vulnerability in Apache Tomcat

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Overview

The CVE-2025-48989 represents a critical vulnerability in Apache Tomcat, which allows attackers to exploit an improper resource shutdown or release. This vulnerability significantly impacts a wide range of Apache Tomcat versions, making them susceptible to a ‘made you reset’ attack. Due to the widespread use of Apache Tomcat, this vulnerability is of significant concern as it could potentially lead to system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-48989
Severity: High (CVSS: 7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage

Affected Products

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Product | Affected Versions

Apache Tomcat | 11.0.0-M1 through 11.0.9
Apache Tomcat | 10.1.0-M1 through 10.1.43
Apache Tomcat | 9.0.0.M1 through 9.0.107

How the Exploit Works

The vulnerability stems from an improper resource shutdown or release within Apache Tomcat. This flaw can be exploited by an attacker to trigger a ‘made you reset’ attack. The attacker sends maliciously crafted packets to the server, causing improper handling of resources. This can lead to unexpected system behavior, potentially compromising the system or leading to data leakage.

Conceptual Example Code

An example of how this vulnerability might be exploited could look something like the following HTTP request:

POST /vulnerable/resource HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
payload=<malicious_payload>

In this example, `` represents a string crafted in such a way that when Apache Tomcat attempts to handle the request, it fails to properly shut down or release the resource, triggering the vulnerability.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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