Vulnerability Details CVE-2026-44435
Quicly is an IETF QUIC protocol implementation intended primarily for use within the H2O HTTP server. Prior to commit 937d0e9, an assertion failure is raised when the total number of valid handshake messages received over a CRYPTO stream of a single packet number space exceeds 32KB, causing a Denial of Service. This issue has been fixed by commit 937d0e9.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 40.1%
CVSS Severity
CVSS v3 Score 7.5
References