Improper Resource Shutdown or Release vulnerability in Apache Tomcat made Tomcat vulnerable to the made you reset attack. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.9, from 10.1.0-M1 through 10.1.43 and from 9.0.0.M1 through 9.0.107. Older, EOL versions may also be affected. Users are recommended to upgrade to one of versions 11.0.10, 10.1.44 or 9.0.108 which fix the issue.

The remote Redhat Enterprise Linux 10 / 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:13685 advisory.

    Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web     applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector (mod_cluster),     the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library.

    This release of Red Hat JBoss Web Server 6.1.2 serves as a replacement for Red Hat JBoss Web Server 6.1.1.
    This release includes bug fixes, enhancements and component upgrades, which are documented in the Release     Notes that are linked to in the References section.

    Security Fix(es):

    * jws6-tomcat: Apache Tomcat denial of service [jws-6] (CVE-2025-52520)
    * [Minor Incident] tomcat: http/2 MadeYouReset DoS attack through HTTP/2 control frames [jws-6]     (CVE-2025-48989)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Tomcat installed on the remote host is prior to 11.0.10. It is, therefore, affected by a vulnerability as referenced in the fixed_in_apache_tomcat_11.0.10_security-11 advisory.

  - Tomcat's HTTP/2 implementation was vulnerable to the made you reset attack. The denial of service     typically manifested as an OutOfMemoryError. (CVE-2025-48989)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of Tomcat installed on the remote host is prior to 9.0.108. It is, therefore, affected by a vulnerability as referenced in the fixed_in_apache_tomcat_9.0.108_security-9 advisory.

  - Tomcat's HTTP/2 implementation was vulnerable to the made you reset attack. The denial of service     typically manifested as an OutOfMemoryError. (CVE-2025-48989)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of Tomcat installed on the remote host is prior to 10.1.44. It is, therefore, affected by a vulnerability as referenced in the fixed_in_apache_tomcat_10.1.44_security-10 advisory.

  - Tomcat's HTTP/2 implementation was vulnerable to the made you reset attack. The denial of service     typically manifested as an OutOfMemoryError. (CVE-2025-48989)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
249345	RHEL 10 / 8 / 9 : Red Hat JBoss Web Server 6.1.2 (RHSA-2025:13685)	Nessus	Red Hat Local Security Checks	high
249236	Apache Tomcat 11.0.0.M1 < 11.0.10	Nessus	Web Servers	high
249235	Apache Tomcat 9.0.0.M1 < 9.0.108	Nessus	Web Servers	high
249230	Apache Tomcat 10.1.0.M1 < 10.1.44	Nessus	Web Servers	high

Detections

Analytics

CVE-2025-48989

high

Tenable Plugins

high

high

high

high