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 CVE-2026-1525

Undici allows duplicate HTTP Content-Length headers when they are provided in an array with case-variant names e.g., Content-Length and content-length. This produces malformed HTTP/1.1 requests with multiple conflicting Content-Length values on the wire. Who is impacted: Applications using...

DEBIAN-CVE-2026-1502

CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host...

nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination

A flaw was found in nghttp2. Due to missing internal state validation, the library continues to process incoming data even after a session has been terminated. A remote attacker could exploit this by sending a specially crafted HTTP/2 frame, leading to an assertion failure and a denial of service...

RHEL 9 : nodejs:22 (RHSA-2026:7302)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:7302 advisory. Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language...

BIT-NODE-2026-21714

A memory leak occurs in Node.js HTTP/2 servers when a client sends WINDOWUPDATE frames on stream 0 connection-level that cause the flow control window to exceed the maximum value of 2³¹-1. The server correctly sends a GOAWAY frame, but the Http2Session object is never cleaned up. This vulnerabili...

EUVD-2026-18245

Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, flooding of craft HTTP2 continuation frames can lead to memory exhaustion, usually resulting in the Suricata process being shut down by the operating system. This issue has been patched in versions 7.0.15 and 8.0.4...

CVE-2026-31935

Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, flooding of craft HTTP2 continuation frames can lead to memory exhaustion, usually resulting in the Suricata process being shut down by the operating system. This issue has been patched in versions 7.0.15 and 8.0.4...

CVE-2026-33871

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: HTTP Request Smuggling via Chunked Extension Quoted-String Parsing

Summary Netty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks. Background This vulnerability is a new variant discovered during research into the "Funky Chunks" HTTP request smuggling techniques: - - The original researc...

Security update for tomcat

This update for tomcat fixes the following issues: Update to Tomcat 9.0.115: CVE-2025-48989: HTTP/2 protocol including DNS over HTTPS is vulnerable to "MadeYouReset" DoS attack bsc1243895. CVE-2025-52434: race condition on connection close when using the APR/Native connector could lead to a JVM...

SUSE CVE-2026-32136

AdGuard Home is a network-wide software for blocking ads and tracking. Prior to 0.107.73, an unauthenticated remote attacker can bypass all authentication in AdGuardHome by sending an HTTP/1.1 request that requests an upgrade to HTTP/2 cleartext h2c. Once the upgrade is accepted, the resulting...

EUVD-2026-13830

gRPC-Go is the Go language implementation of gRPC. Versions prior to 1.79.3 have an authorization bypass resulting from improper input validation of the HTTP/2 :path pseudo-header. The gRPC-Go server was too lenient in its routing logic, accepting requests where the :path omitted the mandatory...

CVE-2026-1525

Undici allows duplicate HTTP Content-Length headers when they are provided in an array with case-variant names e.g., Content-Length and content-length. This produces malformed HTTP/1.1 requests with multiple conflicting Content-Length values on the wire. Who is impacted: Applications...

Security Bulletin: IBM Sterling Control Center is affected by vulnerabilities in http2-common (CVE-2025-5115)

Summary IBM Sterling Control Center is affected by a vulnerability CVE-2025-5115 of http2-common-11.0.24.jar. Vulnerability Details CVEID:CVE-2025-5115 DESCRIPTION: In Eclipse Jetty, versions =9.4.57, =10.0.25, =11.0.25, =12.0.21, =12.1.0.alpha2, an HTTP/2 client may trigger the server to send...

PT-2026-24622

Note: This vulnerability was originally reported to the Google OSS VRP Issue ID: 477542544. The Google Security Team requested that I coordinate directly with the Envoy maintainers for triage and remediation. I am submitting this report here to facilitate that process. Technical Details I have...

AZL-79601 CVE-2026-27142 affecting package gcc 13.2.0-7

Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value "refresh". A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actio...

CVE-2026-27141

Due to missing nil check, sending 0x0a-0x0f HTTP/2 frames will cause a running server to panic...

CVE-2026-24733

A flaw was found in Tomcat. An improper input validation vulnerability allows an attacker to bypass security constraints. Specifically, if a security constraint is configured to permit HEAD requests to a URI but deny GET requests, a malformed or specification invalid HEAD request using the HTTP/0...

Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in netty-codec-http-4.1.118.Final.jar

Summary IBM Watson Discovery Cartridge affected by vulnerability in netty-codec-http-4.1.118.Final.jar Vulnerability Details CVEID:CVE-2025-58056 DESCRIPTION: Netty is an asynchronous event-driven network application framework for development of maintainable high performance protocol servers and...