{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44546", "assignerOrgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "state": "PUBLISHED", "assignerShortName": "DSF", "dateReserved": "2026-05-06T20:29:54.084Z", "datePublished": "2026-06-03T13:17:55.283Z", "dateUpdated": "2026-06-03T15:46:08.745Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "shortName": "DSF", "dateUpdated": "2026-06-03T13:17:55.283Z"}, "title": "Header injection via WebSocket upgrade parser differential allows ASGI scope header spoofing", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-444", "description": "CWE-444 (Inconsistent Interpretation of HTTP Requests -- \"HTTP Request/Response Smuggling\")", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-33", "descriptions": [{"lang": "en", "value": "CAPEC-33: HTTP Request Smuggling"}]}], "affected": [{"vendor": "djangoproject", "product": "daphne", "collectionURL": "https://pypi.org/project/daphne/", "packageName": "daphne", "repo": "https://github.com/django/daphne/", "versions": [{"status": "affected", "version": "4.2.0", "lessThanOrEqual": "4.2.1", "versionType": "python"}, {"status": "unaffected", "version": "4.2.2", "versionType": "python"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>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 <code>\\x0b</code>, <code>\\x0c</code>, <code>\\x1c</code>, <code>\\x1d</code>, <code>\\x1e</code>, or <code>\\x85</code> as header line separators, but autobahn decodes header values to <code>str</code> and calls <code>splitlines()</code>. 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.</p>"}]}], "references": [{"url": "https://github.com/django/daphne/blob/main/CHANGELOG.txt", "tags": ["release-notes"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseSeverity": "LOW", "baseScore": 3.7, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"}}], "timeline": [{"time": "2026-04-09T03:00:00.000Z", "lang": "en", "value": "Initial report received."}, {"time": "2026-05-06T03:00:00.000Z", "lang": "en", "value": "Vulnerability confirmed."}], "credits": [{"lang": "en", "value": "Rene Henningsen", "type": "reporter"}, {"lang": "en", "value": "Carlton Gibson", "type": "remediation developer"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-03T15:45:59.459546Z", "id": "CVE-2026-44546", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-03T15:46:08.745Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-44546", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-03T15:45:59.459546Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-03T15:46:04.583Z"}}], "cna": {"title": "Header injection via WebSocket upgrade parser differential allows ASGI scope header spoofing", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "reporter", "value": "Rene Henningsen"}, {"lang": "en", "type": "remediation developer", "value": "Carlton Gibson"}], "impacts": [{"capecId": "CAPEC-33", "descriptions": [{"lang": "en", "value": "CAPEC-33: HTTP Request Smuggling"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://github.com/django/daphne/", "vendor": "djangoproject", "product": "daphne", "versions": [{"status": "affected", "version": "4.2.0", "versionType": "python", "lessThanOrEqual": "4.2.1"}, {"status": "unaffected", "version": "4.2.2", "versionType": "python"}], "packageName": "daphne", "collectionURL": "https://pypi.org/project/daphne/", "defaultStatus": "unaffected"}], "timeline": [{"lang": "en", "time": "2026-04-09T03:00:00.000Z", "value": "Initial report received."}, {"lang": "en", "time": "2026-05-06T03:00:00.000Z", "value": "Vulnerability confirmed."}], "references": [{"url": "https://github.com/django/daphne/blob/main/CHANGELOG.txt", "tags": ["release-notes"]}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "value": "<p>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 <code>\\x0b</code>, <code>\\x0c</code>, <code>\\x1c</code>, <code>\\x1d</code>, <code>\\x1e</code>, or <code>\\x85</code> as header line separators, but autobahn decodes header values to <code>str</code> and calls <code>splitlines()</code>. 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.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-444", "description": "CWE-444 (Inconsistent Interpretation of HTTP Requests -- \"HTTP Request/Response Smuggling\")"}]}], "providerMetadata": {"orgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "shortName": "DSF", "dateUpdated": "2026-06-03T13:17:55.283Z"}}}, "cveMetadata": {"cveId": "CVE-2026-44546", "state": "PUBLISHED", "dateUpdated": "2026-06-03T15:46:08.745Z", "dateReserved": "2026-05-06T20:29:54.084Z", "assignerOrgId": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "datePublished": "2026-06-03T13:17:55.283Z", "assignerShortName": "DSF"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-44546", "lastModified": "2026-06-03T14:16:43.720", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 1.4, "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "type": "Secondary"}]}, "published": "2026-06-03T14:16:43.720", "references": [{"source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "url": "https://github.com/django/daphne/blob/main/CHANGELOG.txt"}], "sourceIdentifier": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "6a34fbeb-21d4-45e7-8e0a-62b95bc12c92", "type": "Secondary"}]}

{}

{"created": "2026-06-03T15:30:26.539475+00:00", "updated": "2026-06-03T15:30:26.539523+00:00", "vendors": []}