CVE-2026-44546

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Source
https://cve.org/CVERecord?id=CVE-2026-44546
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-44546.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-44546
Aliases
Downstream
Published
2026-06-03T13:17:55.283Z
Modified
2026-06-18T03:54:45.461017891Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
Header injection via WebSocket upgrade parser differential allows ASGI scope header spoofing
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44546.json",
    "cwe_ids": [
        "CWE-444"
    ],
    "cna_assigner": "DSF"
}
References

Affected packages

Git / github.com/django/daphne

Affected ranges

Type
GIT
Repo
https://github.com/django/daphne
Events
Introduced
ce3e7f6156a29a3604ca0130ddaed488fbd2eeda
Fixed
c19f2f4301cc0c26fbf7ed2080eace9e76aec3b6
Database specific 
{
    "cpe": "cpe:2.3:a:djangoproject:daphne:*:*:*:*:*:*:*:*",
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "extracted_events": [
        {
            "introduced": "4.2.0"
        },
        {
            "last_affected": "4.2.1"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "4.2.2"
        }
    ]
}

Affected versions

4.*
4.2.0
4.2.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-44546.json"