netty-codec-http2: Netty: Denial of Service due to HTTP/2 max header size handling

A flaw was found in Netty, a network application framework. A remote attacker can exploit a vulnerability in the HTTP/2 Hypertext Transfer Protocol version 2 maximum header size handling. By sending a specific SETTINGSMAXHEADERLISTSIZE setting, an attacker can cause Netty to produce an exception...

netty-codec-http2: Netty: Denial of Service via uncontrolled HTTP/2 concurrent streams

A flaw was found in Netty, a network application framework. A remote attacker can exploit this vulnerability by sending a large number of HTTP/2 stream requests to a Netty HTTP/2 server. If the server does not explicitly limit concurrent streams, it can lead to the allocation of numerous long-liv...

netty-codec-http2: Netty: Denial of Service due to HTTP/2 max header size handling

A flaw was found in Netty, a network application framework. A remote attacker can exploit a vulnerability in the HTTP/2 Hypertext Transfer Protocol version 2 maximum header size handling. By sending a specific SETTINGSMAXHEADERLISTSIZE setting, an attacker can cause Netty to produce an exception...

CVE-2026-42055

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpproxyv2module and ngxhttpgrpcmodule modules. This vulnerability exists when the proxyhttpversion to 2 or grpcpass directives are used to proxy HTTP/2 traffic, the ignoreinvalidheaders directive is set to off, and the...

CVE-2026-42055

CVE-2026-42055 affects NGINX Plus and NGINX Open Source via the ngx_http_proxy_v2_module and ngx_http_grpc_module. A remote, unauthenticated attacker can exploit scenarios where proxy_http_version 2 or grpc_pass is used, ignore_invalid_headers is off, and large_client_header_buffers is set to mul...

[SECURITY] Fedora 44 Update: perl-Protocol-HTTP2-1.13-1.fc44

Protocol::HTTP2 is Perl HTTP/2 protocol implementation RFC 7540 with stateful decoders/encoders of HTTP/2 frames. You may use this module to implement your own HTTP/2 client/server/intermediate on top of your favorite event loop over plain or TLS socket...

Fedora 43 : perl-Protocol-HTTP2 (2026-4c8da3ad64)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-4c8da3ad64 advisory. This release fixes CVE-2026-10725 exhausting memory when decompressing request headers. It also improves examples. Tenable has extracted the precedi...

PT-2026-50544

Name of the Vulnerable Software and Affected Versions PHP Standard Library PSL versions 6.1.0 through 6.1.1 PHP Standard Library PSL version 6.2.0 Description The PslH2ServerConnection function does not validate that the total bytes received in DATA frames match the content-length header declared...

nginx -- multiple vulnerabilities

The nginx developers report: A heap memory buffer overflow vulnerability when using the "ignoreinvalidheaders off;" and "largeclientheaderbuffers" directives with large configured values while proxying a specially crafted request to an HTTP/2 or gRPC backend may allow memory corruption or a...

openSUSE 16 Security Update : trivy (openSUSE-SU-2026:20956-1)

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20956-1 advisory. This update for trivy fixes the following issues - CVE-2026-25680,CVE-2026-25681,CVE-2026-27136,CVE-2026-42502,CVE-2026-42506:...

PT-2026-50438

Name of the Vulnerable Software and Affected Versions NGINX Plus affected versions not specified NGINX Open Source affected versions not specified Description A flaw in the ngx http proxy v2 module and ngx http grpc module modules can be triggered when NGINX is configured to proxy HTTP/2 traffic...

GHSA-5R4W-85F3-PW66 Traefik: SNICheck ignores wildcard TLSOptions mappings, allowing domain-fronted mTLS bypass

Summary There is a high severity vulnerability in Traefik's domain-fronting protection SNICheck that allows an unauthenticated client to bypass mutual TLS enforced through wildcard router TLSOptions. When a router uses a wildcard host rule such as Host.example.com with stricter TLS options for...

Security Bulletin: Multiple vulnerabilities in IBM Aspera Faspex

Summary Multiple vulnerabilities were addressed in IBM Aspera Faspex 5.0.15.4 Vulnerability Details CVEID:CVE-2026-6322 DESCRIPTION: fast-uri normalize decoded percent-encoded authority delimiters inside the host component and then re-emitted them as raw delimiters during serialization. A host th...

Important: Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.1.9

Red Hat OpenShift Service Mesh 3.1.9 This update has a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section. Red Hat OpenShift Service Mesh 3.1....

Important: Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.0.12

Red Hat OpenShift Service Mesh 3.0.12 This update has a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section. Red Hat OpenShift Service Mesh...

SUSE CVE-2026-50560

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, Netty HTTP/2 max header size handling produces an attack similar to HTTP/2 Rapid Reset. There is a setting in the http2 specification called...

EUVD-2026-36471

Netty susceptible to HTTP/2 Reset Attack with different on-the-wire signature...

GHSA-563Q-J3CM-6JXM Netty susceptible to HTTP/2 Reset Attack with different on-the-wire signature

Summary Netty HTTP/2 max header size handling produces attack similar to HTTP/2 Rapid Reset. Details There is a setting in the http2 specification called SETTINGSMAXHEADERLISTSIZE. According to the RFC: “This advisory setting informs a peer of the maximum field section size that the sender is...

Netty susceptible to HTTP/2 Reset Attack with different on-the-wire signature

Summary Netty HTTP/2 max header size handling produces attack similar to HTTP/2 Rapid Reset. Details There is a setting in the http2 specification called SETTINGSMAXHEADERLISTSIZE. According to the RFC: “This advisory setting informs a peer of the maximum field section size that the sender is...

USN-8430-1: ADSys vulnerabilities

It was discovered that ADSys did not properly handle certain HTTP/2 frames. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. CVE-2026-27141 It was discovered that ADSys did not properly handle certain HTTP/2 SETTINGS frames. ...