NE
Product
netty
by netty · last CVE Sep 26, 2026
On CISA KEVExploited in the wild
103
CVEs
1
On KEV
10.0
Max CVSS
0
New 30D
Severity mix
Critical 10High 63Medium 27Low 1
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Add netty to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2023-44487
In wildKEV
7.5
100%
Oct 10
HTTP/2 Rapid Reset Attack Vulnerability
Affected: before 4.1.100
CVE-2026-44249
8.1
1%
Jun 11
Netty has an IPv6 Subnet Filter Bypass via Incorrect Comparator Masking
Affected: >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
CVE-2026-100665
7.5
0%
Sep 26
Netty 4.2.11 through 4.2.17 QUIC Hostname Verification Bypass
Affected: 4.2.11.Final before 4.2.18.Final
CVE-2026-100664
7.5
0%
Sep 26
Netty 4.2.2 through 4.2.17 HTTP/1 Host Header Authority Confusion
Affected: 4.2.2.Final before 4.2.18.Final
CVE-2026-100663
7.5
0%
Sep 26
Netty HTTP/1 CONNECT authority-form mistranslated to malformed HTTP/3
Affected: 4.2.2.Final before 4.2.18.Final
CVE-2026-100662
7.5
0%
Sep 26
Netty HTTP/3 QPACK encoder-stream unbounded memory exhaustion DoS
Affected: 4.2.0.Final before 4.2.18.Final
CVE-2026-100661
7.5
0%
Sep 26
Netty HTTP/3 QPACK Prefixed Integer DoS via Unbounded Accumulation
Affected: 4.2.0.Final before 4.2.18.Final
CVE-2026-100660
7.5
0%
Sep 26
Netty before 4.2.18.Final QpackEncoder Unbounded Memory Retention
Affected: before 4.2.18.Final
CVE-2026-62380
7.5
0%
Aug 22
Netty before 4.2.16.Final SOCKS Proxy Null Byte Injection
Affected: 4.2.0.Final before 4.2.16.Final; before 4.1.137.Final
CVE-2026-62243
7.5
0%
Aug 22
Netty 4.2.0 through 4.2.16 TLS Hostname Verification Bypass
Affected: 4.2.0.Final before 4.2.16.Final; before 4.1.137.Final
CVE-2026-75596
7.5
0%
Aug 19
Netty: Fragmented ClientHello records trigger quadratic pre-handshake reassembly in default SNI parsing
Affected: < 4.1.137.Final; >= 4.2.0.Final, < 4.2.17.Final
CVE-2026-59903
7.5
0%
Aug 17
Netty: Cache Poisoning and Information Disclosure via CORS Vary Header Overwrite
Affected: < 4.1.137.Final; >= 4.2.0.Final, < 4.2.17.Final
CVE-2026-59902
7.5
0%
Aug 17
Netty: Memory Exhaustion in SctpMessageCompletionHandler
Affected: < 4.1.137.Final; >= 4.2.0.Final, < 4.2.17.Final
CVE-2026-73508
7.5
1%
Aug 13
Netty: Memory Leak in DNS Record Decoder via Malformed Domain Names
Affected: < 4.1.136.Final; >= 4.2.0.Final, < 4.2.16.Final
CVE-2026-73507
7.5
1%
Aug 13
Netty: Denial of Service in XmlFrameDecoder via CPU Exhaustion
Affected: < 4.1.136.Final; >= 4.2.0.Final, < 4.2.16.Final
CVE-2026-59898
7.5
0%
Jul 29
Netty: WebSockets V07/V08 handshaker missing Connection/Upgrade validation
Affected: >=4.2.0.Final, < 4.2.16.Final; < 4.1.136.Final
CVE-2026-59899
7.5
1%
Jul 29
Netty HttpContentEncoder: Unbounded Per-Connection Queue Growth via HTTP/1.1 Pipelining Leads to Denial of Service
Affected: >= 4.2.0.Final, < 4.2.16.Final; < 4.1.136.Final
CVE-2026-59901
7.5
0%
Jul 29
Netty Bzip2Decoder: Infinite Loop in RLE State Machine Leads to Event-Loop Thread Hang
Affected: >=4.2.0.Final, < 4.2.16.Final; < 4.1.136.Final
CVE-2026-56819
7.5
1%
Jul 21
Netty: HTTP/2 decompression leaks ByteBuf reference count when the decompressor channel is already closed (Direct memory leak / OOM DoS)
Affected: >= 4.2.0.Final, < 4.2.16.Final; >= 4.1.0.Final, < 4.1.136.Final
CVE-2026-56816
7.5
1%
Jul 21
Netty: Memory Exhaustion via HTTP/3 Reserved Frame Types
Affected: < 4.2.16.Final
CVE-2026-56745
7.5
1%
Jul 21
Netty SpdyHttpDecoder: ByteBuf Reference Leak on RST_STREAM Leads to Native Memory Exhaustion
Affected: >= 4.2.0.Final, < 4.2.16.Final; >= 4.1.0.Final, < 4.1.136.Final
CVE-2026-55851
7.5
1%
Jul 21
Netty codec-haproxy: Signed-Byte Sentinel Collision in HAProxyMessageDecoder Leads to Unbounded Memory Exhaustion
Affected: >= 4.2.0.Final, < 4.2.16.Final; >= 4.1.0.Final, < 4.1.136.Final
CVE-2026-55833
7.5
1%
Jul 20
Netty SPDY zlib header block continues decoded expansion after maxHeaderSize truncation
Affected: >= 4.2.0.Final, < 4.2.16.Final; >= 4.1.0.Final, < 4.1.136.Final
CVE-2026-55831
7.5
1%
Jul 20
Netty SPDY SETTINGS frame count materializes unbounded settings map
Affected: >= 4.2.0.Final, < 4.2.16.Final; >= 4.1.0.Final, < 4.1.136.Final
CVE-2026-44891
7.5
1%
Jul 17
Netty: Denial of Service via Unbounded Headers in StompSubframeDecoder
Affected: < 4.1.136.Final; >= 4.2.0.Final, < 4.2.16.Final
CVE-2026-50011
7.5
0%
Jun 12
Netty has unbounded pre-allocation in RedisArrayAggregator from RESP array length
Affected: >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
CVE-2026-50010
7.5
0%
Jun 12
Netty's wrapping plain trust manager silently disables hostname verification
Affected: >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
CVE-2026-48748
7.5
0%
Jun 12
Netty HTTP/3 QPACK Blocked Streams Memory Exhaustion
Affected: >= 4.2.0.Final, < 4.2.15.Final
CVE-2026-48059
7.5
1%
Jun 12
Netty HAProxy: Unbalanced Reference Count in Nested PP2_TYPE_SSL TLV Parsing Leads to Memory Exhaustion
Affected: >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
CVE-2026-48043
7.5
1%
Jun 12
netty-codec-http2: ByteBuf Reference-Count Leak in DelegatingDecompressorFrameListener Leads to Memory Exhaustion
Affected: >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
CVE-2026-48006
7.5
1%
Jun 12
Netty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregator
Affected: >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
CVE-2026-46340
7.5
1%
Jun 12
Netty: SCTP reassembly nests buffers without bound
Affected: >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
CVE-2026-45416
7.5
1%
Jun 12
Netty: SNI handler pre-allocates up to 16 MiB from nine attacker bytes
Affected: >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
CVE-2026-44894
7.5
0%
Jun 12
Netty's Default QUIC token handler accepts any client-supplied token
Affected: >= 4.2.0.Final, < 4.2.15.Final
CVE-2026-44893
7.5
1%
Jun 12
Netty: HAProxy SSL TLV parsing leaks retained slice on invalid TLV length
Affected: >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
CVE-2026-44892
7.5
0%
Jun 12
Netty has a Vulnerable Default Configuration Which Leads to Denial of Service via Unbounded HTTP/3 Header Size
Affected: >= 4.2.0.Final, < 4.2.15.Final
CVE-2026-44890
7.5
0%
Jun 11
Netty has Unbounded Direct Memory Consumption in its RedisDecoder
Affected: >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
CVE-2026-44250
7.5
0%
Jun 11
Netty: Memory Exhaustion in RedisArrayAggregator due to Deeply Nested Arrays
Affected: >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final
CVE-2026-44248
7.5
1%
May 13
Netty: Resource exhaustion in MqttDecoder
Affected: >= 4.2.0.Alpha1, < 4.2.13.Final; < 4.1.133.Final
CVE-2026-42587
7.5
1%
May 13
Netty: HttpContentDecompressor maxAllocation bypass via Content-Encoding: br/zstd/snappy enables decompression bomb DoS
Affected: >= 4.2.0.Alpha1, < 4.2.13.Final; < 4.1.133.Final
CVE-2026-42585
7.5
0%
May 13
Netty: HTTP Request Smuggling due to malformed Transfer-Encoding
Affected: >= 4.2.0.Alpha1, < 4.2.13.Final; < 4.1.133.Final
CVE-2026-42583
7.5
0%
May 13
Netty: Lz4FrameDecoder resource exhaustion
Affected: >= 4.2.0.Alpha1, < 4.2.13.Final; < 4.1.133.Final
CVE-2026-42582
7.5
0%
May 13
Netty: HTTP/3 QPACK literal unbounded allocation
Affected: >= 4.2.0.Alpha1, < 4.2.13.Final
CVE-2026-42577
7.5
0%
May 13
Netty: epoll transport denial of service via RST on half-closed TCP connection
Affected: >= 4.2.0.Final, < 4.2.13.Final
CVE-2026-42578
7.5
1%
May 13
Netty: HTTP Header Injection via HttpProxyHandler Disabled Validation
Affected: >= 4.2.0.Alpha1, < 4.2.13.Final; < 4.1.133.Final
CVE-2026-33871
7.5
1%
Mar 27
Netty HTTP/2 CONTINUATION Frame Flood DoS via Zero-Byte Frame Bypass
Affected: < 4.1.132.Final; >= 4.2.0.Alpha1, < 4.2.10.Final
CVE-2026-33870
7.5
1%
Mar 27
Netty: HTTP Request Smuggling via Chunked Extension Quoted-String Parsing
Affected: < 4.1.132.Final; >= 4.2.0.Alpha1, < 4.2.10.Final
CVE-2025-58057
7.5
1%
Sep 4
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients
Affected: before 4.1.125; 4.2.0 before 4.2.5
CVE-2025-58056
7.5
1%
Sep 3
Netty is an asynchronous event-driven network application framework for development of maintainable high performance protocol servers and clients
Affected: before 4.1.125; 4.2.0 before 4.2.5
CVE-2025-55163
7.5
1%
Aug 13
Netty is an asynchronous, event-driven network application framework
Affected: before 4.1.124; 4.2.0 before 4.2.4
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