Review reviewHigh

CVE-2026-44890

netty netty, Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16, Red Hat Data Grid 8.6.2

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.

CVSS: 7.5
EPSS: 0.39%
CISA KEV: Not listed
Published: 2026.06.12

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.39%

Technical severityCVSS 7.5

Vulnerability overview

Affected product and versions

Product: netty netty, Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16, Red Hat Data Grid 8.6.2
Affected versions: >= >= 4.2.0.Final, < 4.2.15.Final, >= < 4.1.135.Final, < 4.1.135, >= 4.2.0 < 4.2.15
Fixed versions: 4.1.135, 4.2.15

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that netty netty, Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16, Red Hat Data Grid 8.6.2 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE: CWE-400, CWE-770