netty-http2-check

netty-http2-check Offline checker for the 7io.netty:netty-codec-http2 CVEs. Tells you which ones you are actually exposed to — and the single version that fixes all of them: 4.1.136.Final / 4.2.16.Final, a number that appears on none of the seven advisories. CVE-2025-55163 · CVE-2026-33871 ·...

Security Bulletin: watsonx.ai on Cloud Pak for Data is vulnerable to Uncontrolled Resource Consumption due to netty-codec-http2-4.1.72.Final (CVE-2023-44487)

Summary netty-codec-http2 is used by watsonx.ai on Cloud Pak for Data for its Watson Document Understanding runtime component Vulnerability Details CVEID:CVE-2023-44487 DESCRIPTION: The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset...

io.netty/netty-codec-http2: io.netty/netty-codec-http3: Netty: HTTP/2 and HTTP/3 Extended CONNECT requests are downgraded as regular CONNECT requests

A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/2 or HTTP/3 Extended CONNECT requests. Netty's HTTP-object conversion path incorrectly processes these requests as regular HTTP/1.1 CONNECT requests, leading to a loss of critical...

io.netty/netty-codec-http2: Netty: HTTP/2 header field values are not validated by default (CR/LF/NUL passthrough)

A flaw was found in Netty's HTTP/2 stack. This vulnerability allows a remote attacker to inject prohibited characters, such as NUL, Line Feed, and Carriage Return, into HTTP/2 header field values due to insufficient validation. When these values cross an HTTP/2 to HTTP/1.1 translation boundary,...

io.netty/netty-codec-http2: HTTP/1 authority-form CONNECT is translated to malformed HTTP/2 CONNECT with Host-controlled :authority

A flaw was found in Netty's HTTP/2 codec. When converting HTTP/1 CONNECT requests to HTTP/2, the component incorrectly uses the Host header instead of the CONNECT authority-form request-target for the tunnel authority. A remote attacker can exploit this by supplying a different Host header, leadi...

io.netty/netty-codec-http2: HTTP/1 absolute-form Host mismatch is translated to HTTP/2 :authority, overriding the request-target authority

A flaw was found in Netty. A remote unauthenticated attacker can exploit a vulnerability in Netty's HTTP/1 to HTTP/2 conversion process. When an HTTP/1 request includes both an absolute-form request-target and a conflicting Host header, Netty incorrectly prioritizes the Host header for the HTTP/2...

RHLW-2026-1CAAFB676CC0F4C9 Lightwell Security Advisory: netty-codec-http2 4.1.100.Final-rhlw-00001

Red Hat Lightwell has released io.netty:netty-codec-http2 4.1.100.Final-rhlw-00001 with backported fixes for CVE-2025-55163, CVE-2026-33871, CVE-2026-42587, CVE-2026-47244, CVE-2026-48043, CVE-2026-50560, CVE-2026-56819, and CVE-2026-59900. CVE-2025-55163: Netty MadeYouReset HTTP/2 DDoS...

netty: io.netty/netty-codec-http: io.netty/netty-codec-http2: Netty: Denial of Service via unbounded memory allocation in HTTP content decompression

A flaw was found in Netty. A remote attacker can bypass the configured decompression limit in the HttpContentDecompressor by sending a specially crafted compressed payload using Brotli br, Zstandard zstd, or Snappy content encodings. This can lead to unbounded memory allocation, resulting in an...

netty-codec-http2: netty-codec-http2: Denial of Service due to resource leak

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...

netty-codec-http2: netty-codec-http2: Denial of Service due to resource leak

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...

netty-codec-http2: netty-codec-http2: Denial of Service due to resource leak

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...

netty: io.netty/netty-codec-http: io.netty/netty-codec-http2: Netty: Denial of Service via unbounded memory allocation in HTTP content decompression

A flaw was found in Netty. A remote attacker can bypass the configured decompression limit in the HttpContentDecompressor by sending a specially crafted compressed payload using Brotli br, Zstandard zstd, or Snappy content encodings. This can lead to unbounded memory allocation, resulting in an...

Important: Red Hat Security Advisory: Apicurio Registry (container images) release and security update [ 3.3.3 GA ]

An update to the images for Red Hat build of Apicurio Registry is now available from the Red Hat Container Catalog. The purpose of this text-only errata is to inform you about the security issues fixed in this release. Red Hat Product Security has rated this update as having a security impact of...

netty-codec-http2: netty-codec-http2: Denial of Service due to resource leak

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...

ROOT-APP-MAVEN-CVE-2026-50560 CVE-2026-50560 in io.netty:netty-codec-http2 - Patched by Root

Root has patched CVE-2026-50560 in the io.netty:netty-codec-http2 package for Root:Maven. Multiple fixed versions available...

ROOT-APP-MAVEN-CVE-2026-48043 CVE-2026-48043 in io.netty:netty-codec-http2 - Patched by Root

Root has patched CVE-2026-48043 in the io.netty:netty-codec-http2 package for Root:Maven. Multiple fixed versions available...

ROOT-APP-MAVEN-CVE-2026-33871 CVE-2026-33871 in io.netty:netty-codec-http2 - Patched by Root

Root has patched CVE-2026-33871 in the io.netty:netty-codec-http2 package for Root:Maven. Multiple fixed versions available...

ROOT-APP-MAVEN-CVE-2025-55163 CVE-2025-55163 in io.netty:netty-codec-http2 - Patched by Root

Root has patched CVE-2025-55163 in the io.netty:netty-codec-http2 package for Root:Maven. Multiple fixed versions available...

ROOT-APP-MAVEN-CVE-2026-47244 CVE-2026-47244 in io.netty:netty-codec-http2 - Patched by Root

Root has patched CVE-2026-47244 in the io.netty:netty-codec-http2 package for Root:Maven. Multiple fixed versions available...

ROOT-APP-MAVEN-CVE-2026-56819 CVE-2026-56819 in io.netty:netty-codec-http2 - Patched by Root

Root has patched CVE-2026-56819 in the io.netty:netty-codec-http2 package for Root:Maven. Multiple fixed versions available...