Astra Linux – Vulnerability in golang-golang-x-net, golang-1.19

A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, enough to trigger a denial of service due to a small number of small requests...

Astra Linux – Vulnerabilities in nghttp2, netty, tomcat9, jetty9, grpc

The HTTP/2 protocol allows for a denial of service server resource consumption, as request cancellation can quickly reset many streams, as exploited in practice from August to October 2023...

Astra Linux – Vulnerability in Apache2

HTTP/2 incoming headers that exceed the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client continues to send headers, this can lead to memory exhaustion...

Astra Linux – Vulnerability in golang-golang-x-net

An attacker can cause excessive memory usage in a Go server that accepts HTTP/2 requests. HTTP/2 server connections include a cache of HTTP header keys sent by the client. Although the total number of entries in this cache is limited, an attacker who sends very large keys can cause the server to...

Astra Linux – Vulnerability in Tomcat9

There is a vulnerability in Apache Tomcat when using the APR/Native connector, involving concurrent execution with shared resources and improper synchronization known as “race condition”. This issue is particularly noticeable during client-initiated closures of HTTP/2 connections. This issue...

Astra Linux – Vulnerability in Jetty9

Jetty is a Java-based web server and servlet engine. An HTTP/2 SSL connection that is established and becomes TCP congested may be leaked when it times out. An attacker can cause many connections to end up in this state, and the server may run out of file descriptors, eventually causing the serve...

Astra Linux - Vulnerability in Golang-1.19

A malicious HTTP/2 client that quickly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is limited by the http2.Server.MaxConcurrentStreams setting, resetting an ongoing request allows the attacker to create a new...

Astra Linux – Vulnerability in Apache2

In certain proxy configurations, a denial-of-service attack against Apache HTTP Server versions 2.4.26 through 2.4.63 can occur when untrusted clients trigger an assertion in modproxyhttp2. The configurations affected include reverse proxies configured for HTTP/2 backends, where ProxyPreserveHost...

Astra Linux – Vulnerability in Netty

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high-performance protocol servers and clients. In Netty io.netty:netty-codec-http2 before version 4.1.61.Final, there is a vulnerability that allows for request smuggling. This...

CVE-2026-42926

A flaw was found in NGINX Open Source. When NGINX is configured to proxy HTTP/2 traffic and uses proxysetbody, a remote attacker may be able to inject malicious data into the upstream peer. This could lead to unintended data manipulation or bypass of security controls. Mitigation To mitigate this...

SUSE CVE-2026-71554

h2 is a pure-Python implementation of a HTTP/2 protocol stack. Versions up to and including 4.4.0 accept request header blocks containing more than one Host header, and forward every Host header to the consuming application. Where the consumer downgrades HTTP/2 to HTTP/1.1, the resulting request...

CVE-2026-56848

A heap use-after-free vulnerability in the Node.js HTTP/2 component allows a remote attacker to crash the application, causing a denial of service. This is triggered by an unexpected re-entrant call to nghttp2sessionmemsend while nghttp2sessionmemrecv is still executing. Mitigation Restrict netwo...

DEBIAN-CVE-2026-71554

h2 is a pure-Python implementation of a HTTP/2 protocol stack. Versions up to and including 4.4.0 accept request header blocks containing more than one Host header, and forward every Host header to the consuming application. Where the consumer downgrades HTTP/2 to HTTP/1.1, the resulting request...

CVE-2026-71554

h2 is a pure-Python implementation of a HTTP/2 protocol stack. Versions up to and including 4.4.0 accept request header blocks containing more than one Host header, and forward every Host header to the consuming application. Where the consumer downgrades HTTP/2 to HTTP/1.1, the resulting request...

Security update for nodejs24

This update for nodejs24 fixes the following issues: Update to 24.18.1. CVE-2026-54272: ip-address: misclassification of IPv4-mapped/NAT64 IPv6 addresses allows for bypass of SSRF and trust- boundary checks bsc1272882. CVE-2026-56846: HTTP/2 retained headers can bypass maxSessionMemory limits...

EulerOS 2.0 SP13 : golang (EulerOS-SA-2026-3017)

According to the versions of the golang packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.CVE-2026-42499 If a trusted template...

EulerOS 2.0 SP13 : golang (EulerOS-SA-2026-2967)

According to the versions of the golang packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.CVE-2026-42499 If a trusted template...

Vulnerability in Cosminexus HTTP Server

Overview VulnerabilityCVE-2026-49975 has been found in Cosminexus HTTP Server. This vulnerability does not apply if HTTP/2 protocol is disabled. Impact Regarding the impact of the vulnerability, please refer to the vendor advisory. Solution Please refer to the 'Vendor Information' section for the...

CVE-2026-56848

A flaw in Node.js HTTP/2 handling allows nghttp2sessionmemsend to be called re-entrantly while nghttp2sessionmemrecv is executing, resulting in a heap-use-after-free. This vulnerability affects Node.js 26.x, 24.x, and 22.x...

EUVD-2026-52763

A flaw in Node.js HTTP/2 handling allows nghttp2sessionmemsend to be called re-entrantly while nghttp2sessionmemrecv is executing, resulting in a heap-use-after-free. This vulnerability affects Node.js 26.x, 24.x, and 22.x...