EUVD-2026-51826

axios versions =1.13.0 Node.js HTTP adapter fail to enforce the configured maxBodyLength limit on streamed request bodies when requests are sent with httpVersion: 2. Because Node's HTTP/2 request API does not honor the maxBodyLength option and axios's byte-counting stream wrapper is gated on...

io.netty/netty-codec-http2: Netty: Denial of Service via HTTP/2 DATA frame memory leak

A flaw was found in Netty, a network application framework. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted HTTP/2 DATA frames to applications that use Netty and have HTTP/2 content decompression enabled. This can lead to memory exhaustion, causing t...

dotnet: SocketsHttpHandler Http2Connection - HTTP/2 SETTINGS/PING ACK flood causing OOM

.NET Denial of Service Vulnerability - HTTP/2 SETTINGS/PING ACK flood causing OOM...

CVE-2026-44982

CVE-2026-44982 affects CrowdSec AppSec. The bug in pkg/appsec/request.go NewParsedRequestFromRequest reads the body using max(r.ContentLength, 0), causing HTTP/1.1 chunked and HTTP/2 without Content-Length to appear with an empty body, bypassing body-inspection rules (REQUEST_BODY, BODY_ARGS, ARG...

HTTP/2 Denial of Service Vulnerability

Allocation of resources without limits or throttling in HTTP/2 allows an unauthorized attacker to deny service over a network...

EUVD-2026-41095

Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2...

BIT-ENVOY-2026-47692 Envoy: PROXY Protocol v2 header generator emits "skipped" TLVs, causing 65 KB attacker-controlled spillover into the upstream application stream

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.34.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, PROXY Protocol v2 header generator emits TLVs beyond the maximum length of 65535 bytes, causing a mismatch between bytes written and the length field in th...

EUVD-2026-39827

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.34.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, PROXY Protocol v2 header generator emits TLVs beyond the maximum length of 65535 bytes, causing a mismatch between bytes written and the length field in th...

CVE-2026-47692 Envoy: PROXY Protocol v2 header generator emits "skipped" TLVs, causing 65 KB attacker-controlled spillover into the upstream application stream

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.34.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, PROXY Protocol v2 header generator emits TLVs beyond the maximum length of 65535 bytes, causing a mismatch between bytes written and the length field in th...

Fedora 44 : perl-Protocol-HTTP2 (2026-12765c0719)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-12765c0719 advisory. This release fixes CVE-2026-10725 exhausting memory when decompressing request headers. It also improves examples. Tenable has extracted the precedi...

PT-2026-45787

Name of the Vulnerable Software and Affected Versions elixir-mint versions 0.1.0 through 1.8.x Description An issue exists where attacker-controlled HTTP/2 servers can cause memory exhaustion in a client. This occurs because the HTTP/2 receive path does not cap the accumulator when a HEADERS fram...

PT-2026-45785

Name of the Vulnerable Software and Affected Versions mint versions 0.2.0 through 1.8.x Description An issue exists where attacker-controlled HTTP/2 servers can exhaust memory in a client via PUSH PROMISE flooding. In the file lib/mint/http2.ex, the function decode push promise headers and add...

CVE-2025-12105 Libsoup: heap use-after-free in libsoup message queue handling during http/2 read completion

A flaw was found in the asynchronous message queue handling of the libsoup library, widely used by GNOME and WebKit-based applications to manage HTTP/2 communications. When network operations are aborted at specific timing intervals, an internal message queue item may be freed twice due to missin...

Updated varnish & lighttpd packages fix security vulnerability

It was discovered that a denial of service attack can be performed on cache servers that have the HTTP/2 protocol turned on. An attacker can create a large number of streams and immediately reset them without ever reaching the maximum number of concurrent streams allowed for the session, causing...

CVE-2025-54479 BIG-IP PEM vulnerability

When a classification profile is configured on a virtual server without an HTTP or HTTP/2 profile, undisclosed requests can cause the Traffic Management Microkernel TMM to terminate. Note: Software versions which have reached End of Technical Support EoTS are not evaluated...

CVE-2025-55669 BIG-IP HTTP/2 vulnerability

When the BIG-IP Advanced WAF and ASM security policy and a server-side HTTP/2 profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel TMM to terminate. Note: Software versions which have reached End of Technical Support EoTS are not evaluated...

The vulnerability of the HTTP/2 implementation in the Netty network programming framework allows a attacker to cause a service failure.

The vulnerability of the HTTP/2 protocol implementation in the Netty network programming framework lies in the unlimited distribution of resources. Exploiting this vulnerability can allow a malicious actor to cause service failures remotely...

OESA-2025-2167 lighttpd security update

Secure, fast, compliant and very flexible web-server which has been optimized for high-performance environments. It has a very low memory footprint compared to other webservers and takes care of cpu-load. Its advanced feature-set FastCGI, CGI, Auth, Output-Compression, URL-Rewriting and many more...

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...

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...