CVE-2026-44892 Netty has a Vulnerable Default Configuration Which Leads to Denial of Service via Unbounded HTTP/3 Header Size

Netty is a network application framework for development of protocol servers and clients. Prior to version 4.2.15.Final, the default configuration of the Http3ConnectionHandler in the Netty HTTP/3 codec lacks an enforced maximum header size limit. When a peer does not explicitly specify...

PT-2026-47603

Name of the Vulnerable Software and Affected Versions Netty affected versions not specified Description The default configuration of the Http3ConnectionHandler in the Netty HTTP/3 codec does not enforce a maximum header size limit. When a peer does not specify HTTP3 SETTINGS MAX FIELD SECTION SIZ...

CVE-2026-40898 quic-go: HTTP/3 QPACK Trailer Expansion Memory Exhaustion

quic-go is an implementation of the QUIC protocol in Go. Prior to version 0.59.1, an attacker can cause excessive memory allocation in quic-go's HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame that decodes into a large trailer field section with many unique field...

CVE-2026-40898

quic-go is an implementation of the QUIC protocol in Go. Prior to version 0.59.1, an attacker can cause excessive memory allocation in quic-go's HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame that decodes into a large trailer field section with many unique field...

PT-2026-46115

Name of the Vulnerable Software and Affected Versions quic-go affected versions not specified Description An attacker can trigger excessive memory allocation in the HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame. This frame decodes into a large trailer field...

quic-go HTTP/3 QPACK Header Expansion DoS

Summary An attacker can cause excessive memory allocation in quic-go's HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame that decodes into a large header field section many unique header names and/or large values. The implementation builds an http.Header used on th...