CVE-2026-56818

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, the RedisArrayAggregator Redis codec clears retained partial aggregate state when the maxNestedArrayDepth limit is exceeded, but it does not clear the same state when the sibling...

Netty: RedisArrayAggregator max-elements failure leaves retained partial aggregate state

Summary RedisArrayAggregator clears retained partial aggregate state when the maxNestedArrayDepth limit is exceeded, but it does not clear the same state when the sibling maxElements limit is exceeded. A peer can start a valid RESP array, send a bulk-string child, then send a nested array header...

GHSA-P9JM-Q85P-7MCP Netty: RedisArrayAggregator max-elements failure leaves retained partial aggregate state

Summary RedisArrayAggregator clears retained partial aggregate state when the maxNestedArrayDepth limit is exceeded, but it does not clear the same state when the sibling maxElements limit is exceeded. A peer can start a valid RESP array, send a bulk-string child, then send a nested array header...

CVE-2026-56818

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, the RedisArrayAggregator Redis codec clears retained partial aggregate state when the maxNestedArrayDepth limit is exceeded, but it does not clear the same state when the sibling...

CVE-2026-56818 Netty: RedisArrayAggregator max-elements failure leaves retained partial aggregate state

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, the RedisArrayAggregator Redis codec clears retained partial aggregate state when the maxNestedArrayDepth limit is exceeded, but it does not clear the same state when the sibling...

CVE-2026-56818 Netty: RedisArrayAggregator max-elements failure leaves retained partial aggregate state

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, the RedisArrayAggregator Redis codec clears retained partial aggregate state when the maxNestedArrayDepth limit is exceeded, but it does not clear the same state when the sibling...

CVE-2026-56818

CVE-2026-56818 affects Netty’s Redis codec (RedisArrayAggregator) where the maxElements path fails to clear retained partial aggregate state, causing a memory leak and attacker-controlled state to remain across a security-limit exception. The issue is triggered when a nested array header exceeds ...

netty-codec-redis: Netty: Denial of Service via malicious Redis array header

A flaw was found in Netty, a network application framework. The RedisArrayAggregator component pre-allocates memory based on the declared element count in a Redis array header. A remote attacker can exploit this by sending a small, malicious Redis array header that claims a huge initial capacity,...

netty-codec-redis: Netty: Denial of Service via malicious Redis array header

A flaw was found in Netty, a network application framework. The RedisArrayAggregator component pre-allocates memory based on the declared element count in a Redis array header. A remote attacker can exploit this by sending a small, malicious Redis array header that claims a huge initial capacity,...

SUSE SLED15 / SLES15 Security Update : netty, netty-tcnative (SUSE-SU-2026:2802-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2802-1 advisory. This update for netty, netty-tcnative fixes the following issue This update for netty, netty-tcnative fixes th...

Security update for netty, netty-tcnative

This update for netty, netty-tcnative fixes the following issue This update for netty, netty-tcnative fixes the following issues Upgrade netty to upstream version 4.1.135, netty-tcnative to upstream version 2.0.79: CVE-2026-44249: IPv6 Subnet Filter Bypass via Incorrect Comparator Masking...

Denial Of Service (DoS)

Netty is vulnerable to Denial of Service DoS. The vulnerability is due to RedisArrayAggregator pre-allocating an ArrayList based on an untrusted RESP array element count from the network, which allows an attacker to trigger excessive memory allocation and exhaust system resources by sending a...

Netty: Unbounded pre-allocation in RedisArrayAggregator from RESP array length

Summary RedisArrayAggregator pre-allocates ArrayList with initial capacity equal to the RESP array element count declared in an array header. That count is taken from the wire before the corresponding child messages exist. A small malicious header can claim a huge initial capacity. Details The...

GHSA-5W86-C3RQ-VJJ7 Netty: Unbounded pre-allocation in RedisArrayAggregator from RESP array length

Summary RedisArrayAggregator pre-allocates ArrayList with initial capacity equal to the RESP array element count declared in an array header. That count is taken from the wire before the corresponding child messages exist. A small malicious header can claim a huge initial capacity. Details The...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in RedisArrayAggregator. An attacker who sends a small RESP array header declaring a very large element count can force the aggregator to reserve a large ArrayList via the...

CVE-2026-50011

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, RedisArrayAggregator pre-allocates ArrayList with initial capacity equal to the RESP array element count declared in an array header. That count is taken fro...

CVE-2026-48006

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, the RedisArrayAggregator handler permanently leaks pooled direct-memory buffers when a Redis pipeline connection closes before a RESP array aggregate...

UBUNTU-CVE-2026-50011

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, RedisArrayAggregator pre-allocates ArrayList with initial capacity equal to the RESP array element count declared in an array header. That count is taken fro...

UBUNTU-CVE-2026-48006

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, the RedisArrayAggregator handler permanently leaks pooled direct-memory buffers when a Redis pipeline connection closes before a RESP array aggregate...

Direct-Memory Resource Leak

RedisArrayAggregator is vulnerable to a direct-memory resource leak. The vulnerability is due to unreleased pooled direct-memory buffers when a Redis pipeline connection closes before a RESP array aggregation completes, which allows an attacker to repeatedly trigger connection churn and exhaust t...