UBUNTU-CVE-2026-44545

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-44545
Published: 03 Jun 2026, 14:16
Last modified:17 Jun 2026, 11:01

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

03 Jun 2026, 14:16
Published
Vulnerability first disclosed
17 Jun 2026, 11:01
Last Modified
Vulnerability information updated

Description

daphne before 4.2.2 did not pass maxFramePayloadSize or maxMessagePayloadSize to Autobahn's WebSocketServerFactory. Because Autobahn defaults both values to 0 (unlimited), an unauthenticated remote attacker could send arbitrarily large WebSocket messages or frames, causing excessive memory consumption and a denial of service.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • ubuntu•python-daphne

    all | all | all | all | all | all

References (2)