Medium severity5.3NVD Advisory· Published Jun 3, 2026· Updated Jul 22, 2026

CVE-2026-44545

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
daphnePyPI	< 4.2.2	4.2.2

Affected products

Daphne/daphnellm-create
Range: <4.2.2
Djangoproject/Daphnereferences2 versions
(expand)+ 1 more
- (no CPE)
- cpe:2.3:a:djangoproject:daphne:*:*:*:*:*:*:*:*range: <4.2.2

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-rrc9-mx66-ffcmghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-44545ghsaADVISORY
github.com/django/daphne/blob/main/CHANGELOG.txtnvdRelease NotesWEB
github.com/pypa/advisory-database/tree/main/vulns/daphne/PYSEC-2026-213.yamlghsaWEB

News mentions

No linked articles in our index yet.

cvss	0.345
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000