Netty HAProxy: Unbalanced Reference Count in Nested PP2_TYPE_SSL TLV Parsing Leads to Memory Exhaustion

Impact The HAProxy PROXY protocol v2 codec in netty leaks native or heap memory on every connection when a client sends a syntactically valid header containing nested PP2TYPESSL TLVs type-length-value records at depth two or greater. The leak occurs on the successful parse path — no exception is...

GHSA-H2QV-FJ59-J46J Netty HAProxy: Unbalanced Reference Count in Nested PP2_TYPE_SSL TLV Parsing Leads to Memory Exhaustion

Impact The HAProxy PROXY protocol v2 codec in netty leaks native or heap memory on every connection when a client sends a syntactically valid header containing nested PP2TYPESSL TLVs type-length-value records at depth two or greater. The leak occurs on the successful parse path — no exception is...

HTTP Request Smuggling io.netty:netty-codec-http Dependency in Crowd Data Center

This High severity HTTP Request Smuggling vulnerability was introduced in versions 6.2.0, 6.3.0, 7.0.0, 7.1.0, 7.2.0 of Crowd Data Center. This HTTP Request Smuggling vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N allows an...

HTTP Request Smuggling io.netty:netty-codec-http Dependency in Crowd Data Center

This is a vulnerability in a non-Atlassian dependency. Atlassian's application of this dependency presents a lower, non-critical assessed risk. This Critical severity HTTP Request Smuggling vulnerability was introduced in versions 6.2.0, 6.3.0, 7.0.0, 7.1.0, 7.2.0 of Crowd Data Center. This HTTP...

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

This High severity DoS Denial of Service vulnerability was introduced in versions 6.2.0, 6.3.0, 7.0.0, 7.1.0, and 7.2.0 of Crowd Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows an...

HTTP Request Smuggling io.netty:netty-codec-http Dependency in Crowd Data Center

This is a vulnerability in a non-Atlassian dependency. Atlassian's application of this dependency presents a lower, non-critical assessed risk. This Critical severity HTTP Request Smuggling vulnerability was introduced in versions 6.2.0, 6.3.0, 7.0.0, 7.1.0, 7.2.0 of Crowd Data Center. This HTTP...

Security Bulletin: IBM App Connect for Manufacturing is vulnerable to CRLF Injection due to Netty ( CVE-2026-41417 )

Summary IBM App Connect for Manufacturing is vulnerable to CRLF Injection due to Netty. Vulnerability Details CVEID:CVE-2026-41417 DESCRIPTION: Netty allows request-line validation to be bypassed when a DefaultHttpRequest or DefaultFullHttpRequest is created first and its URI is later changed via...

GHSA-C2GF-V879-257J netty-codec-http2: ByteBuf Reference-Count Leak in DelegatingDecompressorFrameListener Leads to Memory Exhaustion

Impact The DelegatingDecompressorFrameListener class orchestrates HTTP/2 decompression by embedding a per-stream EmbeddedChannel that runs the appropriate decompression codec gzip, deflate, zstd and forwards decompressed chunks to a wrapped listener. Each decompressed chunk is a pooled ByteBuf...

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

Impact The DelegatingDecompressorFrameListener class orchestrates HTTP/2 decompression by embedding a per-stream EmbeddedChannel that runs the appropriate decompression codec gzip, deflate, zstd and forwards decompressed chunks to a wrapped listener. Each decompressed chunk is a pooled ByteBuf...

Missing Release of Memory after Effective Lifetime

Overview io.netty:netty-codec-http2 is a HTTP2 sub package for the netty library, an event-driven asynchronous network application framework. Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime in the DelegatingDecompressorFrameListener function...

EUVD-2026-34308

netty-incubator-codec-ohttp's Incorrect Native Pointer Derivation in Pooled Direct ByteBuf Fallback Leads to Out-of-Bounds Native Memory Access...

GHSA-32HF-8JW3-V4QQ netty-incubator-codec-ohttp's Incorrect Native Pointer Derivation in Pooled Direct ByteBuf Fallback Leads to Out-of-Bounds Native Memory Access

The netty-incubator-codec-ohttp library implements Oblivious HTTP RFC 9458 using BoringSSL's HPKE C library via JNI. When deriving native memory addresses for cryptographic operations, provides a fallback path for direct ByteBufs that do not expose their memory address through hasMemoryAddress...

Missing Release of Memory after Effective Lifetime

Overview Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime due to improper cleanup of pooled direct-memory buffers in the RedisArrayAggregator function. An attacker can exhaust the JVM-wide direct-memory pool by repeatedly opening and closing...

Netty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregator

Impact The RedisArrayAggregator handler permanently leaks pooled direct-memory buffers when a Redis pipeline connection closes before a RESP array aggregate completes. The handler retains child messages in per-handler state depths field but defines no channelInactive, handlerRemoved, or...

GHSA-6JV9-X5W9-2CCM Netty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregator

Impact The RedisArrayAggregator handler permanently leaks pooled direct-memory buffers when a Redis pipeline connection closes before a RESP array aggregate completes. The handler retains child messages in per-handler state depths field but defines no channelInactive, handlerRemoved, or...

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

This High severity DoS Denial of Service vulnerability was introduced in versions 5.17.0, 10.0.0, 10.1.1, 10.2.0, 10.3.0, 10.4.0, 10.5.0, 10.6.0, 10.7.1, 11.0.0, 11.1.0, 11.2.0, and 11.3.0 of Jira Service Management Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 8.7 a...

HTTP Request Smuggling io.netty:netty-codec-http Dependency in Jira Service Management Data Center

This is a vulnerability in a non-Atlassian Jira dependency. Atlassian's application of this dependency presents a lower, non-critical assessed risk. This High severity HTTP Request Smuggling vulnerability was introduced in versions 10.3.0 and 11.3.0 of Jira Service Management Data Center. This HT...

Security Bulletin: Due to the use of Netty, IBM Enterprise Build of Quarkus is affected by multiple vulnerabilities

Summary IBM Enterprise Build of Quarkus is affected by vulnerabilities in Netty Vulnerability Details CVEID:CVE-2026-42580 DESCRIPTION: Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's chunk size parser silently overflows int,...

CLEANSTART-2026-EG39405 Netty is an asynchronous, event-driven network application framework

Multiple security vulnerabilities affect the trino package. Netty is an asynchronous, event-driven network application framework. See references for individual vulnerability details...

CLEANSTART-2026-AO11810 Netty is an asynchronous, event-driven network application framework

Multiple security vulnerabilities affect the apache-zookeeper package. Netty is an asynchronous, event-driven network application framework. See references for individual vulnerability details...