PYSEC-2026-214
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/daphne/PYSEC-2026-214.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-214
- Aliases
-
- CVE-2026-44546
- Published
- 2026-06-03T14:16:43.720Z
- Modified
- 2026-06-16T16:15:04.651902410Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
- Summary
- [none]
- 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.
- References
Affected packages
PyPI / daphne
Package
- Name
- daphne
- View open source insights on deps.dev
- Purl
- pkg:pypi/daphne
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.2.2
Affected versions
0.*
0.8.1
0.8.2
0.9
0.9.1
0.9.2
0.9.3
0.10.0
0.10.1
0.10.2
0.10.3
0.11.0
0.11.1
0.11.2
0.11.3
0.12.0
0.12.1
0.12.2
0.13.0
0.13.1
0.14.0
0.14.1
0.14.2
0.14.3
0.15.0
1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.1.0
1.2.0
1.3.0
1.4.0
1.4.1
1.4.2
2.*
2.0.0
2.0.1
2.0.2
2.0.3
2.0.4
2.1.0
2.1.1
2.1.2
2.2.0
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.3.0
2.4.0
2.4.1
2.5.0
3.*
3.0.0
3.0.1
3.0.2
4.*
4.0.0b1
4.0.0
4.1.0
4.1.1
4.1.2
4.2.0
4.2.1