dotnet: SocketsHttpHandler Http2Connection - HTTP/2 SETTINGS/PING ACK flood causing OOM

.NET Denial of Service Vulnerability - HTTP/2 SETTINGS/PING ACK flood causing OOM...

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...

ac.intave:cloud-protocol (>=0.0.1, <=0.0.11), africa.absa:inception-application (>=1.0.0, <=1.2.0) +34605 more potentially affected by CVE-2026-50560 via io.netty:netty-codec-http2 (>=4.1.0.beta4, <=4.1.134.final)

io.netty:netty-codec-http2 MAVEN version =4.1.0.beta4, =0.0.1, =1.0.0, =0.1.0-alpha.2, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.3, =0.1.0-alpha.2, =0.1.0, =0.1.0, =0.2.0 and more Source cves:...

ai.catboost:catboost-spark_4.1_2.13 (1.2.10), ai.new-wave:spring-agent-app (>=0.1.0, <=0.3.0) +4487 more potentially affected by CVE-2026-50560 via io.netty:netty-codec-http2 (>=4.2.0.final, <=4.2.14.final)

io.netty:netty-codec-http2 MAVEN version =4.2.0.final, =0.1.0, =0.1.0, =4.13.5, =4.9.0, =4.9.0, =4.5.0, =4.5.0, =4.9.0, =4.9.0, =4.9.0, =4.9.0, =4.9.0, =4.9.2 and more Source cves: CVE-2026-50560 Source advisory: OSV:GHSA-563Q-J3CM-6JXM...

ac.intave:cloud-protocol (>=0.0.1, <=0.0.11), africa.absa:inception-application (>=1.0.0, <=1.2.0) +34605 more potentially affected by CVE-2026-50560 via io.netty:netty-codec-http2 (>=4.1.0.beta4, <=4.1.134.final)

io.netty:netty-codec-http2 MAVEN version =4.1.0.beta4, =0.0.1, =1.0.0, =0.1.0-alpha.2, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.3, =0.1.0-alpha.2, =0.1.0, =0.1.0, =0.2.0 and more Source cves:...

ai.catboost:catboost-spark_4.1_2.13 (1.2.10), ai.new-wave:spring-agent-app (>=0.1.0, <=0.3.0) +4487 more potentially affected by CVE-2026-50560 via io.netty:netty-codec-http2 (>=4.2.0.final, <=4.2.14.final)

io.netty:netty-codec-http2 MAVEN version =4.2.0.final, =0.1.0, =0.1.0, =4.13.5, =4.9.0, =4.9.0, =4.5.0, =4.5.0, =4.9.0, =4.9.0, =4.9.0, =4.9.0, =4.9.0, =4.9.2 and more Source cves: CVE-2026-50560 Source advisory: GHSA-563Q-J3CM-6JXM...

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 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 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 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 : 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...

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 : 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...

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...

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...

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...

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...