CVE-2026-47244 Netty HTTP/2: Advertised MAX_CONCURRENT_STREAMS are not enforced

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, DefaultHttp2Connection.DefaultEndpoint initialises maxActiveStreams/maxStreams to Integer.MAXVALUE, and Http2Settings never inserts...

CVE-2026-47774

A denial-of-service vulnerability was found in Envoy's HTTP/2 HPACK header compression implementation. A remote attacker could send a specially crafted HTTP/2 request that triggers disproportionately large memory allocations on the server, leading to resource exhaustion and denial of service...

Allocation of Resources Without Limits or Throttling

Overview io.netty:netty-codec-http2 is a HTTP2 sub package for the netty library, an event-driven asynchronous network application framework. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to the lack of enforcement of the advertised...

GHSA-5X3R-WRVG-RP6Q Netty HTTP/2: Advertised MAX_CONCURRENT_STREAMS are not enforced

Impact DefaultHttp2Connection.DefaultEndpoint initialises maxActiveStreams/maxStreams to Integer.MAXVALUE, and Http2Settings never inserts SETTINGSMAXCONCURRENTSTREAMS by default Http2Settings.java:305-307 only clamps a user-supplied value. Unless the application explicitly calls...

Netty HTTP/2: Advertised MAX_CONCURRENT_STREAMS are not enforced

Impact DefaultHttp2Connection.DefaultEndpoint initialises maxActiveStreams/maxStreams to Integer.MAXVALUE, and Http2Settings never inserts SETTINGSMAXCONCURRENTSTREAMS by default Http2Settings.java:305-307 only clamps a user-supplied value. Unless the application explicitly calls...

PT-2026-47612

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.135.Final Netty versions prior to 4.2.15.Final Description In the network application framework, DefaultHttp2Connection.DefaultEndpoint initializes maxActiveStreams and maxStreams to Integer.MAX VALUE, while...

CVE-2026-48862 Unbounded conn.streams growth in Mint HTTP/2 client via unenforced PUSH_PROMISE concurrency

Allocation of Resources Without Limits or Throttling vulnerability in elixir-mint Mint allows attacker-controlled HTTP/2 servers to exhaust memory in a Mint client via PUSHPROMISE flooding. In lib/mint/http2.ex, Mint.HTTP2.decodepushpromiseheadersandaddresponse/5 inserts a :reservedremote entry...

Exploit for Uncontrolled Resource Consumption in Siemens Simatic_S7-1500_Cpu_1518F-4_Pn\/Dp_Mfp_Firmware

CVE-2023-44487 — HTTP/2 Rapid Reset Test Lab Educational envi...

CVE-2026-34062

CVE-2026-34062 affects the Nimiq libp2p integration. Before version 1.3.0, MessageCodec::read_request and read_response call read_to_end() on inbound substreams, allowing a remote peer to send only a partial frame and keep the substream open. Additionally, Behaviour::new sets with_max_concurrent_...

Nimiq 安全漏洞

Nimiq is an open-source implementation of the Albatross protocol in Rust. Versions of Nimiq prior to 1.3.0 contained a security vulnerability. This vulnerability stemmed from the use of MessageCodec::readrequest and readresponse in the nimiq-libp2p library, which called readtoend on the inbound...

Security Bulletin: IBM Storage Ceph is vulnerable to CWE in Golang (CVE-2023-39325)

Summary Golang is used by IBM Storage Ceph in Grafana. CVE-2023-39325 Vulnerability Details CVEID:CVE-2023-39325 DESCRIPTION: A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is...

Unity Linux 20.1070e Security Update: skopeo (UTSA-2025-985019)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-985019 advisory. A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of...

EUVD-2022-0967

Malicious code in bioql PyPI...

EUVD-2025-24575

Malicious code in bioql PyPI...

Denial Of Service (DoS)

Netty is vulnerable to Denial Of Service DoS. The vulnerability is due to improper handling of malformed HTTP/2 control frames due to a flaw in enforcing the max concurrent streams limit, leading to resource exhaustion and denial of service...

Exploit for CVE-2025-9784

CVE-2025-9784 MadeYouReset HTTP/2 Vulnerability Test Overv...

ROS-20250822-12

Vulnerability of http2 package of Go programming language is related to uncontrolled server resources consumption as a result of resetting Server.MaxConcurrentStreams parameter during request stream processing. as a result of resetting the Server.MaxConcurrentStreams parameter when processing a...

tomcat: Apache Tomcat denial of service

A denial of service flaw was found in Apache Tomcat. An uncontrolled resource consumption vulnerability, where an HTTP/2 client fails to acknowledge the initial settings frame that reduces the maximum permitted concurrent streams, could result in a denial of service...

tomcat: Apache Tomcat denial of service

A denial of service flaw was found in Apache Tomcat. An uncontrolled resource consumption vulnerability, where an HTTP/2 client fails to acknowledge the initial settings frame that reduces the maximum permitted concurrent streams, could result in a denial of service...

tomcat: Apache Tomcat denial of service

A denial of service flaw was found in Apache Tomcat. An uncontrolled resource consumption vulnerability, where an HTTP/2 client fails to acknowledge the initial settings frame that reduces the maximum permitted concurrent streams, could result in a denial of service...