CVE-2026-44890
Netty has Unbounded Direct Memory Consumption in its RedisDecoder
7.5
HIGH
CVSS 3.1
Description
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 crafted Redis payloads across multiple connections without `\r\n`. This exhausts the server's direct memory pool (OutOfDirectMemoryError), preventing legitimate connections from being processed. Versions 4.1.135.Final and 4.2.15.Final patch the issue.
How to fix CVE-2026-44890
To remediate CVE-2026-44890, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 4.2.15.Final or later
Is CVE-2026-44890 being exploited?
No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-44890.
Affected packages (2)
- from 0
- >= 4.2.0.Final, < 4.2.15.Final
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |