CVE-2026-100657

Netty's STOMP codec io.netty:netty-codec-stomp contains a ByteBuf leak in StompSubframeDecoder. Once a frame's declared content-length has been fully read, the decoder allocates a chunk buffer from the channel allocator and parks it in an instance field while waiting for the single NUL byte that...

CVE-2026-100657 Netty before 4.1.138.Final ByteBuf Leak in StompSubframeDecoder

Netty's STOMP codec io.netty:netty-codec-stomp contains a ByteBuf leak in StompSubframeDecoder. Once a frame's declared content-length has been fully read, the decoder allocates a chunk buffer from the channel allocator and parks it in an instance field while waiting for the single NUL byte that...

CVE-2026-100657

Netty's STOMP codec io.netty:netty-codec-stomp contains a ByteBuf leak in StompSubframeDecoder. Once a frame's declared content-length has been fully read, the decoder allocates a chunk buffer from the channel allocator and parks it in an instance field while waiting for the single NUL byte that...

EUVD-2026-87751

Netty's STOMP codec io.netty:netty-codec-stomp contains a ByteBuf leak in StompSubframeDecoder. Once a frame's declared content-length has been fully read, the decoder allocates a chunk buffer from the channel allocator and parks it in an instance field while waiting for the single NUL byte that...

CVE-2026-93494

CVE-2026-93494 affects Netty's StompSubframeDecoder in the netty-codec-stomp component. A remote attacker can send a specially crafted STOMP frame body missing its terminating null byte , causing the decoder to allocate a ByteBuf that is never released . This results in a permanent memory leak th...

DoS (Denial of Service) io.netty:netty-codec-http2 Dependency in Confluence Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 8.5.0, 8.9.0, 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0, and 10.2.0 of Confluence Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of...

Missing Release of Resource after Effective Lifetime

Overview Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime through DnsCodecUtil.decompressDomainName in codec-dns/src/main/java/io/netty/handler/codec/dns/DnsCodecUtil.java. An attacker can exhaust direct memory and trigger a gradual denial o...

CVE-2026-73508

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.dns.AbstractDnsRecord, io.netty.handler.codec.dns.DefaultDnsRecordDecoder.decodeRecord, and io.netty.handler.codec.dns.DnsCodecUtil.decompressDomainName failed to...

netty-codec-redis: Netty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregator

A flaw was found in netty-codec-redis. A remote attacker can exploit this vulnerability by repeatedly closing Redis pipeline connections before a Redis array aggregate completes. This leads to a permanent leak of direct-memory buffers, which prevents memory chunks from being returned to the share...

netty-codec-redis: Netty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregator

A flaw was found in netty-codec-redis. A remote attacker can exploit this vulnerability by repeatedly closing Redis pipeline connections before a Redis array aggregate completes. This leads to a permanent leak of direct-memory buffers, which prevents memory chunks from being returned to the share...

GHSA-93WV-JW9V-4972 Netty: HTTP/2 decompression leaks ByteBuf reference count when the decompressor channel is already closed (Direct memory leak / OOM DoS)

Summary A remote, unauthenticated peer can leak one direct ByteBuf per HTTP/2 DATA frame in applications that enable HTTP/2 content decompression via DelegatingDecompressorFrameListener. When a DATA frame is processed for a stream whose decompressor has already been closed,...

Netty: [SpdyHttpDecoder] ByteBuf Reference Leak on RST_STREAM Leads to Native Memory Exhaustion

The SpdyHttpDecoder handler in Netty's SPDY-to-HTTP codec allocates a pooled ByteBuf when processing a client-initiated SYNSTREAM frame with FLAGFIN=0, storing the partially-constructed FullHttpRequest in an internal map messageMap to accumulate subsequent DATA frames. When the remote peer sends ...

SUSE CVE-2026-56745

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, the SpdyHttpDecoder handler in Netty's SPDY-to-HTTP codec allocates a pooled ByteBuf when processing a client-initiated...

SUSE CVE-2026-56819

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct ByteBuf per HTTP/2 DATA frame in applications that enable HTTP/2 content...

CVE-2026-56745

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, the SpdyHttpDecoder handler in Netty's SPDY-to-HTTP codec allocates a pooled ByteBuf when processing a client-initiated...

CVE-2026-56819

What was affected: Netty versions 4.2.0.Final–4.2.15.Final and 4.1.0.Final–4.1.135.Final. Root cause: when processing HTTP/2 DATA frames for streams whose decompressor had already closed, Http2Decompressor.decompress(...) retains the inbound ByteBuf and does not release it on the error path, leak...

CVE-2026-56819 Netty: HTTP/2 decompression leaks ByteBuf reference count when the decompressor channel is already closed (Direct memory leak / OOM DoS)

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct ByteBuf per HTTP/2 DATA frame in applications that enable HTTP/2 content...

CVE-2026-56745 Netty SpdyHttpDecoder: ByteBuf Reference Leak on RST_STREAM Leads to Native Memory Exhaustion

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, the SpdyHttpDecoder handler in Netty's SPDY-to-HTTP codec allocates a pooled ByteBuf when processing a client-initiated...

CVE-2026-56745

Netty CVE-2026-56745 affects the SPDY-to-HTTP codec SpdyHttpDecoder. In vulnerable versions (4.2.0.Final–4.2.15.Final and 4.1.0.Final–4.1.135.Final), processing a client SYN_STREAM with FLAG_FIN=0 can cause the decoder to pool a ByteBuf and cache a partially built FullHttpRequest in messageMap. W...

CVE-2026-48043 netty-codec-http2: ByteBuf Reference-Count Leak in DelegatingDecompressorFrameListener Leads to Memory Exhaustion

Netty is a network application framework for development of protocol servers and clients. In netty-codec-http2 prior to versions 4.1.135.Final and 4.2.15.Final, the DelegatingDecompressorFrameListener class orchestrates HTTP/2 decompression by embedding a per-stream EmbeddedChannel that runs the...