Vulnerability in Netty

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…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

  • Netty — versions < 4.1.136.Final, >= 4.2.0-Final, < 4.2.16.Final

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-56818?
CVE-2026-56818 is a medium-severity vulnerability in Netty, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2026-08-07.
How severe is CVE-2026-56818?
Medium severity. CVSS v3 base score is 6.5 out of 10.