Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : Apache HTTP Server vulnerability (USN-8384-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8384-1 advisory. It was discovered that Apache HTTP Server incorrectly handled certain cookie headers in the HTTP/2 implementation. A remote attack...

PT-2026-47612

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.135.Final Netty versions prior to 4.2.15.Final Description In the network application framework, DefaultHttp2Connection.DefaultEndpoint initializes maxActiveStreams and maxStreams to Integer.MAX VALUE, while...

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...

net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame

A flaw was found in the HTTP/2 protocol implementation within the Go standard library golang.org/x/net and net/http/internal/http2. A remote attacker can exploit this vulnerability by sending a specially crafted HTTP/2 SETTINGS frame with the SETTINGSMAXFRAMESIZE parameter set to zero. This...

USN-8384-1: Apache HTTP Server vulnerability

It was discovered that Apache HTTP Server incorrectly handled certain cookie headers in the HTTP/2 implementation. A remote attacker could possibly use this issue to cause Apache HTTP Server to consume excessive resources, resulting in a denial of service...

RHSA-2026:22551 Red Hat Security Advisory: mod_http2 security update

Bulletin has no description...

Exploit for CVE-2026-49975

CVE-2026-49975 — HTTP/2 Bomb PoC !CVEhttps://img.shields...

[slackware-security] httpd

New httpd packages are available for Slackware 15.0 and -current to fix a security issue. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/httpd-2.4.67-i586-2slack15.0.txz: Rebuilt. This update fixes "HTTP/2 Bomb", a resource exhaustion denial-of-service attack against...

PT-2026-46945

Name of the Vulnerable Software and Affected Versions Envoy versions prior to 1.35.11 Description An issue exists in the Envoy gateway related to HTTP/2, which can be exploited to cause a denial of service, potentially bringing down an Evonode. There have been reports of elevated activities...

The vulnerability of the HTTP/2 header processing module in the Apache HTTP Server allows a attacker to cause a service failure.

The vulnerability of the HTTP/2 header processing module in the Apache HTTP Server is related to the unlimited distribution of resources. Exploiting this vulnerability can allow a remote attacker to cause service interruptions...

Security update for golang-github-prometheus-prometheus

This update for golang-github-prometheus-prometheus to version 3.5.3 fixes the following issues: Security issues fixed: CVE-2026-42151: AzureAD remote write: Fixed OAuth clientsecret being exposed in plaintext via /-/config endpoint bsc1263986 CVE-2026-42154: Remote-read: Reject snappy-compressed...

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...

CVE-2026-50052

In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack request smuggling, which in turn can be used for cache poisoning, authentication bypass, or possibly even information disclosure and...

CVE-2026-50052

Affected products/versions: Vinyl Cache < 9.0.1 and Varnish Cache

CVE-2026-50052

In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack request smuggling, which in turn can be used for cache poisoning, authentication bypass, or possibly even information disclosure and...

EUVD-2026-34066

In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack request smuggling, which in turn can be used for cache poisoning, authentication bypass, or possibly even information disclosure and...

CVE-2026-50052

In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack request smuggling, which in turn can be used for cache poisoning, authentication bypass, or possibly even information disclosure and...

CVE-2026-50052

In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack request smuggling, which in turn can be used for cache poisoning, authentication bypass, or possibly even information disclosure and...

Linux Distros Unpatched Vulnerability : CVE-2026-50052

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack...

CVE-2026-50052

In Vinyl Cache before 9.0.1 and Varnish Cache before 9.0.3, a deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack request smuggling, which in turn can be used for cache poisoning, authentication bypass, or possibly even information disclosure and...