CVE-2025-54500

An HTTP/2 implementation flaw allows a denial-of-service DoS that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit HTTP/2 MadeYouReset Attack. Note: Software versions which have reached End of Technical Support EoTS are not evaluated...

tomcat: http/2 "MadeYouReset" DoS attack through HTTP/2 control frames

A flaw was found in Apache Tomcat where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream...

CVE-2025-54500 HTTP/2 Vulnerability

An HTTP/2 implementation flaw allows a denial-of-service DoS that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit HTTP/2 MadeYouReset Attack. Note: Software versions which have reached End of Technical Support EoTS are not evaluated...

Information Exposure

Overview omero-web is an OMERO.web Affected versions of this package are vulnerable to Information Exposure via the getGuestConnection function in the webadmin/views.py file. An attacker can obtain unnecessary user information by triggering error messages during password reset attempts. Workaroun...

CVE-2025-55163 Netty MadeYouReset HTTP/2 DDoS Vulnerability

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.124.Final and 4.2.4.Final, Netty is vulnerable to MadeYouReset DDoS. This is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to break the max concurrent...

CVE-2025-55163 Netty MadeYouReset HTTP/2 DDoS Vulnerability

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.124.Final and 4.2.4.Final, Netty is vulnerable to MadeYouReset DDoS. This is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to break the max concurrent...

CVE-2025-55163

Netty (HTTP/2) vulnerability CVE-2025-55163: a logic flaw in HTTP/2 control frames (MadeYouReset) can bypass max concurrent streams, causing resource exhaustion and DoS. Affected: Netty versions before 4.1.124.Final and 4.2.4.Final. Impact: high availability risk; no confidentiality/integrity imp...

CVE-2025-54791

OMERO.web provides a web based client and plugin infrastructure. Prior to version 5.29.2, if an error occurred when resetting a user's password using the Forgot Password option in OMERO.web, the error message displayed on the Web page can disclose information about the user. This issue has been...

CVE-2025-54791 OMERO.web displays unecessary user information when requesting to reset the password

OMERO.web provides a web based client and plugin infrastructure. Prior to version 5.29.2, if an error occurred when resetting a user's password using the Forgot Password option in OMERO.web, the error message displayed on the Web page can disclose information about the user. This issue has been...

CVE-2025-54791 OMERO.web displays unecessary user information when requesting to reset the password

OMERO.web provides a web based client and plugin infrastructure. Prior to version 5.29.2, if an error occurred when resetting a user's password using the Forgot Password option in OMERO.web, the error message displayed on the Web page can disclose information about the user. This issue has been...

CVE-2025-54791

CVE-2025-54791 concerns OMERO.web prior to 5.29.2, where an error during the Forgot Password flow could disclose user information in the web page. The issue is mitigated by upgrading to version 5.29.2 or higher. As a workaround, disabling the Forgot Password option via the omero.web.show_forgot_p...

CVE-2025-8671

A mismatch caused by client-triggered server-sent stream resets between HTTP/2 specifications and the internal architectures of some HTTP/2 implementations may result in excessive server resource consumption leading to denial-of-service DoS. By opening streams and then rapidly triggering the serv...

UBUNTU-CVE-2025-48989

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...

CVE-2025-48989

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...

CVE-2025-48989 Apache Tomcat: h2 DoS - Made You Reset

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...

CVE-2025-48989

Apache Tomcat is vulnerable to a MadeYouReset denial of service (DoS) attack due to an Improper Resource Shutdown or Release (CWE-404) vulnerability. This issue is specifically triggered via HTTP/2 control frames . The vulnerability affects versions 11.0.0-M1 through 11.0.9 , 10.1.0-M1 through 10...

CVE-2025-8671

A mismatch caused by client-triggered server-sent stream resets between HTTP/2 specifications and the internal architectures of some HTTP/2 implementations may result in excessive server resource consumption leading to denial-of-service DoS. By opening streams and then rapidly triggering the serv...

MadeYouReset: Turning HTTP/2 Server Against Itself

Introduction HTTP/2 was designed for performance- faster multiplexed connections, stream prioritization, and header compression. But these same features have also opened the door for sophisticated denial-of-service attacks. Back in 2023, the HTTP/2 Rapid Reset vulnerability made headlines after...

A Coordinated Response to MadeYouReset HTTP/2 Protocol Attacks

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PT-2025-32984

Name of the Vulnerable Software and Affected Versions AMPHP affected versions not specified Apache Tomcat affected versions not specified Eclipse Foundation affected versions not specified F5 affected versions not specified Fastly affected versions not specified gRPC affected versions not specifi...