Vulnerability in Netty
CVE-2026-59919
Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.136.Final and 4.2.16.Final, Netty's HAProxy encoder ( HAProxyMessageEncoder ) writes AF_UNIX source and destination socket addresses into the HA…
Vulnerability class: CRLF Injection
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Netty — versions < 4.1.136.Final, >= 4.2.0.Final, < 4.2.16.Final
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-59919?
- CVE-2026-59919 is a medium-severity vulnerability in Netty, classified under CRLF Injection. CVSS score: 5.5/10. Published 2026-07-29.
- How severe is CVE-2026-59919?
- Medium severity. CVSS v3 base score is 5.5 out of 10.