{"cve":"CVE-2026-44545","nvd":{"published":"2026-06-03T14:16:43.583","modified":"2026-07-22T19:10:00.120","status":"Analyzed","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-770"],"references":["https://github.com/django/daphne/blob/main/CHANGELOG.txt"],"products":["djangoproject:daphne"],"source":"nvd","synced_at":"2026-10-19T22:37:48.043517290+00:00"},"epss":{"cve":"CVE-2026-44545","score":0.00328,"percentile":0.25892,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-rrc9-mx66-ffcm","url":"https://osv.dev/vulnerability/GHSA-rrc9-mx66-ffcm","summary":"daphne: Unauthenticated attackers can cause excessive memory consumption by sending arbitrarily large WebSocket messages/frames","modified":"2026-07-11T23:11:11.284019477Z","packages":[{"ecosystem":"PyPI","name":"daphne","purl":"pkg:pypi/daphne","ranges":["<4.2.2"],"fixed":["4.2.2"]}]},{"id":"PYSEC-2026-213","url":"https://osv.dev/vulnerability/PYSEC-2026-213","summary":"","modified":"2026-07-13T16:45:11.380471273Z","packages":[{"ecosystem":"PyPI","name":"daphne","purl":"pkg:pypi/daphne","ranges":["<4.2.2"],"fixed":["4.2.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}