Is CVE-2026-93574 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-93574?

CVE-2026-93574 has a CVSS v3 severity of MEDIUM (6.5).

Back

CVE-2026-93574

Description

A flaw was found in Netty's `netty-codec-http` component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an attacker to bypass security controls or access unauthorized resources in proxy/backend deployments.