CVE-2026-75484 HTTP/2 header field values containing CR, LF or NUL are passed to the application unvalidated in Bandit

Improper Neutralization of CRLF Sequences 'CRLF Injection' vulnerability in mtrudel bandit allows an unauthenticated remote attacker to smuggle CR, LF, or NUL characters into application-visible request headers via HTTP/2. Bandit.HTTP2.Stream.readheaders/1 validates pseudo-header placement and...

CVE-2026-59900

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, Netty's HTTP/2-to-HTTP/1.x translation layer Http2StreamFrameToHttpObjectCodec and InboundHttp2ToHttpAdapter fails to deduplicate or validate Host headers when an HTTP/2 client...

EUVD-2026-50442

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, Netty's HTTP/2-to-HTTP/1.x translation layer Http2StreamFrameToHttpObjectCodec and InboundHttp2ToHttpAdapter fails to deduplicate or validate Host headers when an HTTP/2 client...

CVE-2026-59900 Netty codec-http2: Lack of Host Header Deduplication in HTTP/2→HTTP/1.x Translation Leads to Request Routing Bypass

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, Netty's HTTP/2-to-HTTP/1.x translation layer Http2StreamFrameToHttpObjectCodec and InboundHttp2ToHttpAdapter fails to deduplicate or validate Host headers when an HTTP/2 client...

Improper Validation of Consistency within Input

Overview org.eclipse.jetty:jetty-server is a lightweight highly scalable java based web server and servlet engine. Affected versions of this package are vulnerable to Improper Validation of Consistency within Input through ComplianceUtils.verifyHttpURI, HttpFields, HttpCompliance,...

Netty: [codec-http2] Lack of Host Header Deduplication in HTTP/2→HTTP/1.x Translation Leads to Request Routing Bypass

Netty's HTTP/2-to-HTTP/1.x translation layer Http2StreamFrameToHttpObjectCodec and InboundHttp2ToHttpAdapter fails to deduplicate or validate Host headers when an HTTP/2 client supplies both the :authority pseudo-header and a literal host header in a single HEADERS frame. The translator maps...

PT-2026-63548

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.136.Final Netty versions prior to 4.2.16.Final Description The HTTP/2-to-HTTP/1.x translation layer, specifically within Http2StreamFrameToHttpObjectCodec and InboundHttp2ToHttpAdapter, fails to deduplicate or...

CVE-2026-43972 gun HTTP/2 PUSH_PROMISE authority not validated against connection origin allows cross-origin cookie injection

Origin Validation Error vulnerability in ninenines gun gunhttp2 module allows cross-origin cookie injection via unvalidated HTTP/2 PUSHPROMISE authority. In gunhttp2:pushpromiseframe/7, the :authority pseudo-header from an incoming PUSHPROMISE frame is stored verbatim into the promised stream...

EUVD-2026-35073

Origin Validation Error vulnerability in ninenines gun gunhttp2 module allows cross-origin cookie injection via unvalidated HTTP/2 PUSHPROMISE authority. In gunhttp2:pushpromiseframe/7, the :authority pseudo-header from an incoming PUSHPROMISE frame is stored verbatim into the promised stream...

PT-2026-47298

Name of the Vulnerable Software and Affected Versions ninenines gun versions 2.0.0 through 2.3.x Description An origin validation error in the gun http2 module allows cross-origin cookie injection through an unvalidated HTTP/2 PUSH PROMISE authority. In the push promise frame function, the...

GHSA-G53W-W6MJ-HRPP MCP Gateway: Authority-injection and JWT/session bypass via the unauthenticated router hair-pin "router-key" / "mcp-init-host" path

Summary The MCP router extproc exposes an initialize-method code path that, when a request carries an mcp-init-host header, bypasses the gateway JWT session validator and rewrites the upstream :authority header to whatever the caller chooses, gated only by a single shared header value router-key...

ROS-20260209-73-0004

A vulnerability in the onframerecvcallback function soup-server-message-io-http1.c of the GNOME GUI libsoup library is related to misinterpretation of input data when processing :scheme, :authority, and :path pseudo headers. Exploitation of the vulnerability could allow an attacker acting remotel...

SUSE CVE-2025-32908

A flaw was found in libsoup. The HTTP/2 server in libsoup may not fully validate the values of pseudo-headers :scheme, :authority, and :path, which may allow a user to cause a denial of service DoS...

DEBIAN-CVE-2025-32908

A flaw was found in libsoup. The HTTP/2 server in libsoup may not fully validate the values of pseudo-headers :scheme, :authority, and :path, which may allow a user to cause a denial of service DoS...

CVE-2024-32475 Envoy RELEASE_ASSERT using auto_sni with :authority header > 255 bytes

Envoy is a cloud-native, open source edge and service proxy. When an upstream TLS cluster is used with autosni enabled, a request containing a host/:authority header longer than 255 characters triggers an abnormal termination of Envoy process. Envoy does not gracefully handle an error when settin...

CVE-2024-32475 Envoy RELEASE_ASSERT using auto_sni with :authority header > 255 bytes

Envoy is a cloud-native, open source edge and service proxy. When an upstream TLS cluster is used with autosni enabled, a request containing a host/:authority header longer than 255 characters triggers an abnormal termination of Envoy process. Envoy does not gracefully handle an error when settin...