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.
Metrics
Affected Vendors & Products
References
History
Fri, 17 Jul 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 17 Jul 2026 00:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
H2o
H2o quicly |
|
| Vendors & Products |
H2o
H2o quicly |
Thu, 16 Jul 2026 23:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Quicly: Remote Denial of Service via assertion failure when CRYPTO stream handshake data exceeds 32KB | |
| Weaknesses | CWE-400 CWE-617 |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-17T13:02:55.330Z
Reserved: 2026-05-06T14:40:00.954Z
Link: CVE-2026-44435
Updated: 2026-07-17T13:02:51.228Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-17T00:30:03Z