CVE-2026-46387

Suricata , a network IDS/IPS/NSM engine, is affected by a decompression bomb vulnerability in its HTTP/2 decompression path . Prior to versions 7.0.16 and 8.0.5 , a crafted HTTP/2 DATA payload using a high compression ratio (gzip, deflate, or brotli) could cause Suricata to allocate excessive mem...

Security update for tomcat10

This update for tomcat10 fixes the following issues: CVE-2026-65182: Apache Tomcat: Bypass longest prefix security constraint bsc1276893. CVE-2026-65183: Apache Tomcat: TOCTOU when setting specific permissions for Unix Domain Sockets bsc1276894. CVE-2026-65637: Apache Tomcat: HTTP/2 no-authority...

SUSE-SU-2026:4119-1 Security update for tomcat10

This update for tomcat10 fixes the following issues: - CVE-2026-65182: Apache Tomcat: Bypass longest prefix security constraint bsc1276893. - CVE-2026-65183: Apache Tomcat: TOCTOU when setting specific permissions for Unix Domain Sockets bsc1276894. - CVE-2026-65637: Apache Tomcat: HTTP/2...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.16.70 security and extras update

Red Hat OpenShift Container Platform release 4.16.70 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Container Platform 4.16. Red Hat Product Security has rated this update as having a security impact of...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

Important: nginx

Issue Overview: An HTTP/2 denial of service vulnerability was found in nginx. Prior to the fix, there was no limit on the number of request headers a client could send. An attacker could seed the HPACK dynamic table with a header, then emit thousands of indexed references that each cost significa...

PT-2026-89459

Summary There is a high-severity request-smuggling vulnerability in Traefik's handling of the HTTP/1.1 Upgrade mechanism. Since Traefik moved to unencrypted HTTP/2 with prior knowledge Go 1.24, a client-initiated Upgrade: h2c request header and its connection-specific HTTP2-Settings header were...

Amazon Linux 2023 : nginx, nginx-all-modules, nginx-core (ALAS2023-2026-2130)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-2130 advisory. An HTTP/2 denial of service vulnerability was found in nginx. Prior to the fix, there was no limit on the number of request headers a client could send. An attacker could seed the HPACK dynamic table...

CVE-2026-46387: Improper Handling of Highly Compressed Data (Data Amplification)

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's HTTP/2 decompression path could grow the decompressed response-body buffer without an effective upper bound. A crafted HTTP/2 DATA...

CVE-2026-45764: Access of Resource Using Incompatible Type

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a protocol change while processing HTTP/2 traffic could lead to type confusion in Suricata. Crafted traffic may cause Suricata to crash,...

Security update for tomcat11

This update for tomcat11 fixes the following issues: CVE-2026-65182: Apache Tomcat: Bypass longest prefix security constraint bsc1276893. CVE-2026-65183: Apache Tomcat: TOCTOU when setting specific permissions for Unix Domain Sockets bsc1276894. CVE-2026-65637: Apache Tomcat: HTTP/2 no-authority...

SUSE-SU-2026:4114-1 Security update for tomcat11

This update for tomcat11 fixes the following issues: - CVE-2026-65182: Apache Tomcat: Bypass longest prefix security constraint bsc1276893. - CVE-2026-65183: Apache Tomcat: TOCTOU when setting specific permissions for Unix Domain Sockets bsc1276894. - CVE-2026-65637: Apache Tomcat: HTTP/2...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

OPENSUSE-SU-2026:21823-1 Security update for tomcat

This update for tomcat fixes the following issues: - CVE-2026-65182: Bypass longest prefix security constraint bsc1276893. - CVE-2026-65183: TOCTOU when setting specific permissions for Unix Domain Sockets bsc1276894. - CVE-2026-65637: HTTP/2 no-authority bypass of strict SNI validation - fix...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

CVE-2026-16028

A flaw was found in Protocol::HTTP2 for Perl. A remote attacker could exploit this vulnerability by repeatedly opening and closing HTTP/2 streams. This action causes the system to retain residual entries for each closed stream, leading to an unbounded increase in memory usage. This memory...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.19.46 security and extras update

Red Hat OpenShift Container Platform release 4.19.46 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Container Platform 4.19. Red Hat Product Security has rated this update as having a security impact of...