PT-2026-45940 · Djangoproject · Daphne

Carlton Gibson + 1 · Published 2026-06-03 · Updated 2026-06-03 · CVE-2026-44545

Mitre

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2026-44545

Affected Products

Daphne

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-44545 · Security Note
• https://github.com/django/daphne/blob/main/CHANGELOG.txt · Note