CVE-2026-44250

Summary

Netty is a network application framework for development of protocol servers and clients. In netty-codec-redis prior to versions 4.1.135.Final and 4.2.15.Final, 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. Versions 4.1.135.Final and 4.2.15.Final patch the issue.

Affected Software

Weaknesses

• CWE-400: CWE-400: Uncontrolled Resource Consumption

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

netty-codec-redis: netty-codec-redis: Denial of Service via crafted Redis payload with deeply nested arrays

Additional References

• https://access.redhat.com/security/cve/CVE-2026-44250
• https://bugzilla.redhat.com/show_bug.cgi?id=2488062
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44250.json

References

• https://github.com/netty/netty/security/advisories/GHSA-3244-j874-rhc2
• https://github.com/netty/netty/releases/tag/netty-4.1.135.Final
• https://github.com/netty/netty/releases/tag/netty-4.2.15.Final

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