CVEvulnerability

CVE-2026-44435

7.5 HIGH Published 2026-07-16 Modified 2026-10-24 Official page ↗
Status
Analyzed
Published
2026-07-16
Last modified
2026-10-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-400, CWE-617

Description

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.

Affected configurations

• h2o quicly (< 2026-05-29)

Related

Weakness · CWE (2)

  • CWE-400 Uncontrolled Resource Consumption weakness
  • CWE-617 Reachable Assertion weakness

References