Linux Distros Unpatched Vulnerability : CVE-2026-100663

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty's HTTP/3 codec io.netty:netty-codec-http3 from 4.2.2.Final through 4.2.17.Final does not special- case HTTP/1 CONNECT authority-form request-targets when...

CVE-2026-100663

A flaw was found in Netty's HTTP/3 codec netty-codec-http3. A remote attacker can bypass security policies and tunnel allowlists when Netty acts as an HTTP/1 to HTTP/3 proxy or gateway. Due to improper translation of HTTP/1 CONNECT requests, the component uses the attacker-controlled Host header ...

CVE-2026-100664

Netty's HTTP/3 codec io.netty:netty-codec-http3 versions 4.2.2.Final through 4.2.17.Final builds the HTTP/3 :authority pseudo-header from the HTTP/1 Host header before considering the authority of an absolute-form HTTP/1 request-target. In HttpConversionUtil.toHttp3HeadersHttpMessage, boolean —...

CVE-2026-100663

Netty's HTTP/3 codec io.netty:netty-codec-http3 from 4.2.2.Final through 4.2.17.Final does not special-case HTTP/1 CONNECT authority-form request-targets when converting HTTP/1 messages to HTTP/3 in HttpConversionUtil.toHttp3Headers. The authority-form target e.g., "CONNECT trusted.example:443" i...