CVE-2026-44250: Netty: Memory Exhaustion in RedisArrayAggregator due to Deeply Nested Arrays

June 8, 2026 (updated June 12, 2026)

An attacker can cause DoS by sending a crafted Redis payload with deeply nested arrays. This forces the server to allocate a massive number of state objects and collections, leading to memory exhaustion and an OutOfMemoryError.

References

github.com/advisories/GHSA-3244-j874-rhc2
github.com/netty/netty/releases/tag/netty-4.1.135.Final
github.com/netty/netty/releases/tag/netty-4.2.15.Final
github.com/netty/netty/security/advisories/GHSA-3244-j874-rhc2
nvd.nist.gov/vuln/detail/CVE-2026-44250

Code Behaviors & Features

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