Netty: Unix-socket fd receive leaks descriptors when peer sends two at once

nettyunixsocketrecvFd sets msgcontrol to char controlCMSGSPACEsizeofint line 940 — 24 bytes on 64-bit Linux. A peer-sent SCMRIGHTS cmsg carrying two ints has cmsglen = CMSGLEN8 = 24, which fits exactly with no MSGCTRUNC, so the kernel installs both fds in the receiving process. The subsequent che...

Missing Release of Resource after Effective Lifetime

Overview Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime in the nettyunixsocketrecvFd function. An attacker can cause file descriptor leaks by sending two file descriptors at once via a Unix domain socket, leading to resource exhaustion and...

ai.ancf.lmos-router:benchmarks (>=0.2.0 <=0.28.0), ai.ancf.lmos-router:lmos-router-hybrid (>=0.2.0 <=0.28.0) +12829 more potentially affected by CVE-2026-45536 via io.netty:netty-transport-native-epoll (>=4.0.21.Final <=4.1.134.Final)

io.netty:netty-transport-native-epoll MAVEN version =4.0.21.Final, =0.2.0, =0.2.0, =0.2.0, =0.2.0, =0.2.0, =0.2.0, =0.1.1, =0.1.1, =0.1.1, =0.0.4, =0.6.0 - ai.ancf.lmos:lmos-router-hybrid =0.1.0 - ai.ancf.lmos:lmos-router-hybrid-spring-boot-starter =0.1.0 - ai.ancf.lmos:lmos-router-llm =0.1.0 -...

ai.agentican:agentican-framework-core (>=0.1.0-alpha.2 <=0.1.0-alpha.4), ai.agentican:agentican-quarkus-deployment (>=0.1.0-alpha.1 <=0.1.0-alpha.4) +29726 more potentially affected by CVE-2026-45416 via io.netty:netty-handler (>=4.0.0.Alpha1 <=4.1.134.Final)

io.netty:netty-handler MAVEN version =4.0.0.Alpha1, =0.1.0-alpha.2, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.3, =0.1.0-alpha.2, =0.1.0, =0.1.0, =0.2.0, =0.2.0, =0.28.0 and more Source cves:...

ai.new-wave:spring-agent-app (>=0.1.0 <=0.3.0), ai.new-wave:spring-agent-core (>=0.1.0 <=0.3.0) +4461 more potentially affected by CVE-2026-45416 via io.netty:netty-handler (>=4.2.0.Final <=4.2.14.Final)

io.netty:netty-handler MAVEN version =4.2.0.Final, =0.1.0, =0.1.0, =4.7.4, =4.7.4, =4.7.3, =4.7.3, =4.7.3, =4.7.3, =4.7.3, =26.3.0, =26.3.0, =26.3.0, =26.3.2 and more Source cves: CVE-2026-45416 Source advisory: OSV:GHSA-X4GW-5CX5-PGMH...

Netty: SNI handler pre-allocates up to 16 MiB from nine attacker bytes

SslClientHelloHandler.decode reads the 24-bit TLS handshake length and, when the ClientHello does not fit in the first record, eagerly allocates ctx.alloc.bufferhandshakeLength line 161. The guard at line 140 is handshakeLength maxClientHelloLength && maxClientHelloLength != 0, and the...

Allocation of Resources Without Limits or Throttling

Overview io.netty:netty-handler is a library that provides an asynchronous event-driven network application framework and tools for rapid development of maintainable high performance and high scalability protocol servers and clients. In other words, Netty is a NIO client server framework which...

GHSA-X4GW-5CX5-PGMH Netty: SNI handler pre-allocates up to 16 MiB from nine attacker bytes

SslClientHelloHandler.decode reads the 24-bit TLS handshake length and, when the ClientHello does not fit in the first record, eagerly allocates ctx.alloc.bufferhandshakeLength line 161. The guard at line 140 is handshakeLength maxClientHelloLength && maxClientHelloLength != 0, and the...

ai.new-wave:spring-agent-app (>=0.1.0 <=0.3.0), ai.new-wave:spring-agent-core (>=0.1.0 <=0.3.0) +1044 more potentially affected by CVE-2026-44894 via io.netty:netty-codec-classes-quic (>=4.2.10.Final <=4.2.14.Final)

io.netty:netty-codec-classes-quic MAVEN version =4.2.10.Final, =0.1.0, =0.1.0, =0.0.1-alfa, =0.0.1-demo, =6.0.1, =4.0.3-M1, =1.21.9, =1.0.5, =3.6.4, =1.0.1, =26.2.1, =26.6.1 and more Source cves: CVE-2026-44894 Source advisory: OSV:GHSA-CMM3-54F8-PX4J...

Netty's Default QUIC token handler accepts any client-supplied token

NoQuicTokenHandler is the tokenHandler used when the application does not set one. Its writeToken returns false server will not send Retry — acceptable, but validateToken unconditionally return 0. In QuicheQuicServerCodec.handlePacket, a non-negative return from validateToken is interpreted as...

Improper Verification of Source of a Communication Channel

Overview Affected versions of this package are vulnerable to Improper Verification of Source of a Communication Channel due to improper validation in the validateToken function. An attacker can cause the server to treat unvalidated client addresses as validated by supplying any non-empty token...

GHSA-CMM3-54F8-PX4J Netty's Default QUIC token handler accepts any client-supplied token

NoQuicTokenHandler is the tokenHandler used when the application does not set one. Its writeToken returns false server will not send Retry — acceptable, but validateToken unconditionally return 0. In QuicheQuicServerCodec.handlePacket, a non-negative return from validateToken is interpreted as...

ai.spice:spiceai (=0.6.0), cn.isqing.icloud:icloud-common-utils (>=4.0.3-M1 <=4.0.3.1) +636 more potentially affected by CVE-2026-44893 via io.netty:netty-codec-haproxy (>=4.2.0.Final <=4.2.14.Final)

io.netty:netty-codec-haproxy MAVEN version =4.2.0.Final, =4.0.3-M1, =1.21.9, =3.4.7, =25.4.1, =26.2.1, =7.9.0, =5.1.0, =5.1.0, =6.80, =6.84 and more Source cves: CVE-2026-44893 Source advisory: OSV:GHSA-CC37-9Q2J-3HFV...

ai.agentican:agentican-quarkus-deployment (>=0.1.0-alpha.1 <=0.1.0-alpha.4), ai.agentican:agentican-quarkus-metrics (>=0.1.0-alpha.1 <=0.1.0-alpha.4) +6289 more potentially affected by CVE-2026-44893 via io.netty:netty-codec-haproxy (>=4.1.100.Final <=4.1.134.Final)

io.netty:netty-codec-haproxy MAVEN version =4.1.100.Final, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.3, =0.1.0, =0.1.0, =0.0.86, =0.0.86, =0.0.86, =def544ccef5f753238ecc4adfc2eaa7d2fc36d53-0.0.91 -...

Netty: HAProxy SSL TLV parsing leaks retained slice on invalid TLV length

When decoding a PP2TYPESSL TLV, HAProxyMessage.readNextTLV first calls header.retainedSliceheader.readerIndex, length and only then reads the 1-byte client field and 4-byte verify field. If the attacker sets the TLV length below 5, the subsequent readByte/readInt throws IndexOutOfBoundsException...

Missing Release of Resource after Effective Lifetime

Overview Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime through improper handling of TLV length in the readNextTLV function. An attacker can cause resource exhaustion and denial of service by sending a specially crafted HAProxy protocol...

GHSA-CC37-9Q2J-3HFV Netty: HAProxy SSL TLV parsing leaks retained slice on invalid TLV length

When decoding a PP2TYPESSL TLV, HAProxyMessage.readNextTLV first calls header.retainedSliceheader.readerIndex, length and only then reads the 1-byte client field and 4-byte verify field. If the attacker sets the TLV length below 5, the subsequent readByte/readInt throws IndexOutOfBoundsException...

Netty has a Vulnerable Default Configuration Which Leads to Denial of Service via Unbounded HTTP/3 Header Size

Summary The default configuration of the Http3ConnectionHandler in the Netty HTTP/3 codec lacks an enforced maximum header size limit. When a peer does not explicitly specify HTTP3SETTINGSMAXFIELDSECTIONSIZE, the implementation defaults to an unbounded limit. This insecure default configuration...

Insecure Default Initialization of Resource

Overview Affected versions of this package are vulnerable to Insecure Default Initialization of Resource due to the lack of an enforced maximum header size limit in the default configuration of the Http3ConnectionHandler. An attacker can exhaust server memory and cause application crashes by...

ai.new-wave:spring-agent-app (>=0.1.0 <=0.3.0), ai.new-wave:spring-agent-core (>=0.1.0 <=0.3.0) +1038 more potentially affected by CVE-2026-44892 via io.netty:netty-codec-http3 (>=4.2.10.Final <=4.2.14.Final)

io.netty:netty-codec-http3 MAVEN version =4.2.10.Final, =0.1.0, =0.1.0, =0.0.1-alfa, =0.0.1-demo, =6.0.1, =4.0.3-M1, =1.21.9, =1.0.5, =3.6.4, =1.0.1, =26.2.1, =26.6.1 and more Source cves: CVE-2026-44892 Source advisory: OSV:GHSA-C2RX-5R8W-8XR2...