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...

Security Bulletin: Vulnerability in gRPC-Go bundled with IBM Fusion, IBM Fusion HCI, and IBM Fusion Content-Aware Storage

Summary IBM Fusion, IBM Fusion HCI, and IBM Fusion Content-Aware Storage include the gRPC-Go library, which is vulnerable to an authorization bypass. This issue is caused by improper input validation of the HTTP/2 :path pseudo-header. The gRPC-Go server incorrectly accepted requests where the...

SUSE CVE-2026-47244

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, DefaultHttp2Connection.DefaultEndpoint initialises maxActiveStreams/maxStreams to Integer.MAXVALUE, and Http2Settings never inserts...

Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : ADSys vulnerabilities (USN-8430-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8430-1 advisory. It was discovered that ADSys did not properly handle certain HTTP/2 frames. A remote attacker could possibly...

USN-8398-3 nginx vulnerability

USN-8398-1 fixed a vulnerability in nginx. The update caused a regression and was temporarily reverted in USN-8398-2. This update introduces a complete fix for CVE-2026-49975. We apologize for the inconvenience. Original advisory details: It was discovered that nginx incorrectly handled certain...

SUSE SLES15 Security Update : kubernetes (SUSE-SU-2026:2342-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2342-1 advisory. This update for kubernetes fixes the following issues - CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport...

SUSE SLED15 / SLES15 Security Update : libsoup (SUSE-SU-2026:2314-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2314-1 advisory. This update for libsoup fixes the following issues - CVE-2026-1801: HTTP Request Smuggling in...

SUSE SLES12 Security Update : google-cloud-sap-agent (SUSE-SU-2026:2348-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:2348-1 advisory. This update for google-cloud-sap-agent fixes the following issue - CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport...

SUSE SLES15 Security Update : kubernetes1.28 (SUSE-SU-2026:2344-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2344-1 advisory. Security fixes: - CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport when given bad SETTINGSMAXFRAMESIZE...

SUSE SLES15 Security Update : kubernetes1.25 (SUSE-SU-2026:2345-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2345-1 advisory. Security fixes: - CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport when given bad SETTINGSMAXFRAMESIZE...

SUSE SLES15 Security Update : google-cloud-sap-agent (SUSE-SU-2026:2372-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:2372-1 advisory. This update for google-cloud-sap-agent fixes the following issue - CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport...

CVE-2026-48043

A flaw was found in netty-codec-http2. A remote attacker could send specially crafted frames that cause a resource leak within the DelegatingDecompressorFrameListener class. This resource leak could lead to an Out Of Memory Error OOME, potentially causing a Denial of Service DoS by taking down th...

mod_http2 security update

An update is available for modhttp2. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The modh2 Apache httpd module implements the HTTP2 protocol h2+h2c on top o...

RLSA-2026:25225 Important: mod_http2 security update

The modh2 Apache httpd module implements the HTTP2 protocol h2+h2c on top of libnghttp2 for httpd 2.4 servers. Security Fixes: httpd: HTTP/2: Remote Denial of Service via compression bomb and Slowloris-style attack CVE-2026-49975 For more details about the security issues, including the impact, a...

CVE-2026-12043 Heap double-free in AWS Common Runtime aws-c-http

Improper handling of HPACK dynamic table size updates in the AWS Common Runtime aws-c-http library might allow a remote threat actor operating a server to cause memory corruption on a connecting client application, potentially leading to arbitrary code execution, via a crafted sequence of HTTP/2...

Allocation of Resources Without Limits or Throttling

Overview io.netty:netty-codec-http2 is a HTTP2 sub package for the netty library, an event-driven asynchronous network application framework. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the handling of the SETTINGSMAXHEADERLISTSIZE...

CVE-2026-48043 netty-codec-http2: ByteBuf Reference-Count Leak in DelegatingDecompressorFrameListener Leads to Memory Exhaustion

Netty is a network application framework for development of protocol servers and clients. In netty-codec-http2 prior to versions 4.1.135.Final and 4.2.15.Final, the DelegatingDecompressorFrameListener class orchestrates HTTP/2 decompression by embedding a per-stream EmbeddedChannel that runs the...

DoS (Denial of Service) io.netty:netty-codec-http2 Dependency in Crowd Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 6.2.0, 6.3.0, 7.0.0, 7.1.0, and 7.2.0 of Crowd Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows an...

RockyLinux 10 : mod_http2 (RLSA-2026:25225)

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:25225 advisory. httpd: HTTP/2: Remote Denial of Service via compression bomb and Slowloris-style attack CVE-2026-49975 Tenable has extracted the preceding description block...

Security update for tomcat11

This update for tomcat11 fixes the following issues Update to Tomcat 11.0.22: CVE-2026-41284: Unbounded read in WebDAV LOCK and PROPFIND handling bsc1265162. CVE-2026-41293: HTTP/2 request headers not validated bsc1265163. CVE-2026-42498: WebSocket authentication header exposure bsc1265165...