Djangoproject Daphne vulnerabilities

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Published CVEs affecting Djangoproject Daphne: 2 record(s), with affected versions and fixes.
cpe:2.3:a:djangoproject:daphne

CVE-2026-44546 Medium · 5.3 CWE-444 Jun 3, 2026

Header injection via WebSocket upgrade parser differential allows ASGI scope header spoofing

daphne before 4.2.2 reconstructs a raw HTTP request from Twisted's parsed headers and feeds it to autobahn for WebSocket handshake processing. Twisted does not treat \x0b, \x0c, \x1c, \x1d, \x1e, or \x85 as header line separators, but autobahn decodes header values to str and calls splitlines(). An attacker can exploit this parser differential to inject additional headers into the ASGI scope passed to the application. daphne now rejects requests with these bytes in any header value with a 400 response.

CVE-2026-44545 High · 7.5 CWE-770 Jun 3, 2026

Unbounded WebSocket message and frame sizes can cause unauthenticated remote denial of service

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.