CVEvulnerability
CVE-2026-0672
6.0 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-01-20
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 6.0 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Weaknesses
- CWE-93
Description
When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters.
Related
Weakness · CWE (1)
- CWE-93 Improper Neutralization of CRLF Sequences weakness
References
- https://github.com/python/cpython/commit/62700107418eb2cca3fc88da036a243ea975f172 github.com
- https://github.com/python/cpython/commit/712452e6f1d4b9f7f8c4c92ebfcaac1705faa440 github.com
- https://github.com/python/cpython/commit/7852d72b653fea0199acf5fc2a84f6f8b84eba8d github.com
- https://github.com/python/cpython/commit/918387e4912d12ffc166c8f2a38df92b6ec756ca github.com
- https://github.com/python/cpython/commit/95746b3a13a985787ef53b977129041971ed7f70 github.com
- https://github.com/python/cpython/commit/b1869ff648bbee0717221d09e6deff46617f3e85 github.com
- https://github.com/python/cpython/issues/143919 github.com
- https://github.com/python/cpython/pull/143920 github.com
- https://mail.python.org/archives/list/[email protected]/thread/6VFLQQEIX673KXKFUZXCUNE5AZOGZ45M/ mail.python.org