CVE-2026-93579: Undefined Security Weakness

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,...

PT-2026-95420

Name of the Vulnerable Software and Affected Versions Netty affected versions not specified Description A flaw exists in the HTTP/2 codec when converting HTTP/1 CONNECT requests to HTTP/2. The component incorrectly utilizes the Host header instead of the CONNECT authority-form request-target to...

CVE-2026-93567: Improper Input Validation

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...

PT-2026-95398

Name of the Vulnerable Software and Affected Versions Netty affected versions not specified Description A flaw in the WebSocketServerExtensionHandler allows a remote, unauthenticated attacker to cause a Denial of Service DoS. By utilizing HTTP/1.1 pipelining—a technique where multiple HTTP reques...

PT-2026-95401

Name of the Vulnerable Software and Affected Versions Netty affected versions not specified Description An issue exists where strict validation of the chunk-size line is skipped when the line contains no chunk extension ;. A remote attacker can exploit this by sending a specially crafted HTTP...

PT-2026-95399

Name of the Vulnerable Software and Affected Versions Netty affected versions not specified Description A reference-count leak exists in the HAProxy PROXY-v2 message decoder. A remote, unauthenticated attacker can exploit this by sending specially crafted PROXY-protocol v2 headers, specifically...

CVE-2026-93561: Undefined Security Weakness

A flaw was found in io.netty/netty-codec-memcache. The Memcache binary protocol codec incorrectly reads keyLength and extrasLength as signed Java types instead of unsigned, as specified by the protocol. A malicious Memcache server can exploit this type mismatch by sending a specially crafted...

PT-2026-95302

Name of the Vulnerable Software and Affected Versions Netty affected versions not specified Description A flaw in the StompSubframeDecoder component allows a remote attacker to cause a permanent memory leak by sending a specially crafted STOMP frame body that lacks its terminating null byte. This...

CVE-2026-93488: Allocation of Resources Without Limits or Throttling

A flaw was found in Netty. SpdySessionHandler accepts an unlimited number of concurrent remote-initiated streams because localConcurrentStreams defaults to Integer.MAXVALUE and the handler provides no API to change it. A remote peer can open a SPDY connection and send a large number of SYNSTREAM...

CVE-2026-93574: Inconsistent Interpretation of HTTP Requests

A flaw was found in Netty's netty-codec-http component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an...

CVE-2026-93492: Undefined Security Weakness

A flaw was found in Netty's HTTP/2 HpackEncoder. A remote attacker can exploit this by sending HTTP/2 SETTINGS frames with a very large MAXHEADERTABLESIZE. This causes the HpackEncoder to store an excessive number of unique headers, leading to increased CPU usage and memory consumption, ultimatel...

CVE-2026-93566: Undefined Security Weakness

A flaw was found in Netty. A remote attacker could exploit this by sending a specially crafted HTTP request that includes control characters within the chunk-size line. This bypasses the intended strict validation, allowing the attacker to inject arbitrary HTTP requests. This vulnerability can le...

CVE-2026-93565: Undefined Security Weakness

A flaw was found in Netty RtspDecoder. The RtspMethods.valueOf function incorrectly strips trailing control bytes from method tokens in Real-Time Streaming Protocol RTSP requests. A remote attacker can exploit this by sending a specially crafted RTSP request, leading to method-token smuggling. Th...

CVE-2026-93493: Improper Check for Certificate Revocation

A flaw was found in Netty's netty-handler-ssl-ocsp component. A remote attacker can exploit this vulnerability by providing an Online Certificate Status Protocol OCSP response that omits the optional nextUpdate field. This omission causes the OCSP validation to be silently skipped, leading to...

Security Bulletin: Multiple Security Vulnerabilities in Netty Affect IBM Sterling B2B Integrator and IBM Sterling File Gateway

Summary IBM Sterling B2B Integrator and IBM Sterling File Gateway have addressed the security vulnerabilities Vulnerability Details CVEID:CVE-2026-42586 DESCRIPTION: Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the Netty Redis code...

Security Bulletin: There are multiple security vulnerability in IBM Maximo Asset Management application

Summary There are multiple security vulnerability in IBM Maximo Asset Management application Vulnerability Details CVEID:CVE-2026-59901 DESCRIPTION: Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the Bzip2Decoder handler in...

Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in netty-codec

Summary IBM Watson Discovery Cartridge affected by vulnerability in netty-codec Vulnerability Details CVEID:CVE-2026-59901 DESCRIPTION: Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the Bzip2Decoder handler in Netty's...

Security Bulletin: Multiple Vulnerabilities in IBM DataStax Enterprise

Summary Multiple vulnerabilities were addressed in IBM DataStax Enterprise 6.9.24 Vulnerability Details CVEID:CVE-2016-4970 DESCRIPTION: handler/ssl/OpenSslEngine.java in Netty 4.0.x before 4.0.37.Final and 4.1.x before 4.1.1.Final allows remote attackers to cause a denial of service infinite loo...

io.netty/netty-handler: Netty: TLS hostname verification bypass via OpenSSL client path misconfiguration

A flaw was found in Netty io.netty:netty-handler. When using the SslProvider.OPENSSL client path with a plain X509TrustManager and without Unsafe-based trust-manager wrapping Java 25+, TLS hostname verification is disabled. This misconfiguration allows a man-in-the-middle attacker to present a...

io.netty/netty-handler: Netty: TLS hostname verification bypass via OpenSSL client path misconfiguration

A flaw was found in Netty io.netty:netty-handler. When using the SslProvider.OPENSSL client path with a plain X509TrustManager and without Unsafe-based trust-manager wrapping Java 25+, TLS hostname verification is disabled. This misconfiguration allows a man-in-the-middle attacker to present a...