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 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...

FreeBSD : nginx-devel -- multiple vulnerabilities (1ed77d8e-53bb-11f1-b339-3497f65b111b)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 1ed77d8e-53bb-11f1-b339-3497f65b111b advisory. The nginx project reports: nginx 1.31.0 fixes multiple security issues affecting HTTP/2...

google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation

A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 :path pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed :path that omits the mandato...

libsoup: libsoup: Denial of Service via Use-After-Free in HTTP/2 server

A flaw was found in libsoup, a library for handling HTTP requests. This vulnerability, known as a Use-After-Free, occurs in the HTTP/2 server implementation. A remote attacker can exploit this by sending specially crafted HTTP/2 requests that cause authentication failures. This can lead to the...

Exploit for CVE-2026-42945

CVE-2026-42945 PoC Go This tool is designed for detecting a...

Security update for go1.26 (important)

openSUSE security update: security update for go1.26 ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:20762-1 Rating: important References: bsc1170826 bsc1255111 bsc1264499 bsc1264500 bsc1264501 bsc1264502 bsc1264503 bsc1264504 bsc1264505 bsc1264506...

FreeBSD : Vinyl/Varnish -- HTTP/2 parsing deficiency (f0f4bb64-52c6-11f1-a1c0-0050569f0b83)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the f0f4bb64-52c6-11f1-a1c0-0050569f0b83 advisory. Vinyl Development Team reports: A deficiency in HTTP/2 request parsing can be exploited to launch a...

ALSA-2026:19353 Important: opentelemetry-collector security update

Collector with the supported components for a AlmaLinux build of OpenTelemetry Security Fixes: net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-25679 google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path...

ALSA-2026:19143 Moderate: libsoup3 security update

Libsoup is an HTTP library implementation in C. It was originally part of a SOAP Simple Object Access Protocol implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate packages. libsoup uses the Glib main loop and is designed to work well with GTK applications...

netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood

A flaw was found in Netty. A remote user can trigger a Denial of Service DoS against a Netty HTTP/2 server by sending a flood of CONTINUATION frames. The server's lack of a limit on these frames, coupled with a bypass of size-based mitigations using zero-byte frames, allows an attacker to consume...

netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood

A flaw was found in Netty. A remote user can trigger a Denial of Service DoS against a Netty HTTP/2 server by sending a flood of CONTINUATION frames. The server's lack of a limit on these frames, coupled with a bypass of size-based mitigations using zero-byte frames, allows an attacker to consume...

SUSE-SU-2026:21732-1 Security update for google-guest-agent

This update for google-guest-agent fixes the following issue - CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper validation of the HTTP/2: path pseudo- header bsc1260264...

SUSE SLED15 / SLES15 Security Update : go1.25 (SUSE-SU-2026:1862-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1862-1 advisory. This update for go1.25 fixes the following issues Security issues: - CVE-2026-33811: net: crash when handling...

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...

MGASA-2026-0139 Updated tomcat packages fix security vulnerability

Unbounded read in WebDAV LOCK and PROPFIND handling. CVE-2026-41284 HTTP/2 request headers not validated. CVE-2026-41293 WebSocket authentication header exposure. CVE-2026-42498 Digest authenticator will authenticate any unknown user. CVE-2026-43512 LockOutRealm treats user names as case-sensitiv...

Updated tomcat packages fix security vulnerability

Unbounded read in WebDAV LOCK and PROPFIND handling. CVE-2026-41284 HTTP/2 request headers not validated. CVE-2026-41293 WebSocket authentication header exposure. CVE-2026-42498 Digest authenticator will authenticate any unknown user. CVE-2026-43512 LockOutRealm treats user names as case-sensitiv...

Azure Linux 3.0 Security Update: CBL-Mariner Releases (CVE-2026-33814)

The version of CBL-Mariner Releases installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2026-33814 advisory. - When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing...

SUSE CVE-2026-42926

When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxyhttpversion to 2, and also uses proxysetbody, an attacker may be able to inject frame headers and payload bytes to the upstream peer. Note: Software versions which have reached End of Technical Support EoTS are not...

www/nginx -- Remote Code Execution/DoS

nginx development team reports: When using the "proxysetbody" directive, an attacker might inject data in the proxied request to an HTTP/2 backend A heap memory buffer overflow might occur in a worker process while handling a specially crafted request by ngxhttprewritemodule, potentially resultin...