CVE-2026-0672
6
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Python Software Foundation | CPython | 0 < 3.10.20 | affected |
| Python Software Foundation | CPython | 3.11.0 < 3.11.15 | affected |
| Python Software Foundation | CPython | 3.12.0 < 3.12.13 | affected |
| Python Software Foundation | CPython | 3.13.0 < 3.13.12 | affected |
| Python Software Foundation | CPython | 3.14.0 < 3.14.3 | affected |
| Python Software Foundation | CPython | 3.15.0a1 < 3.15.0a6 | affected |
Weaknesses
- CWE-93: CWE-93
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/python/cpython/pull/143920
- https://github.com/python/cpython/issues/143919
- https://mail.python.org/archives/list/security-announce@python.org/thread/6VFLQQEIX673KXKFUZXCUNE5AZOGZ45M/
- https://github.com/python/cpython/commit/95746b3a13a985787ef53b977129041971ed7f70
- https://github.com/python/cpython/commit/712452e6f1d4b9f7f8c4c92ebfcaac1705faa440
- https://github.com/python/cpython/commit/62700107418eb2cca3fc88da036a243ea975f172
- https://github.com/python/cpython/commit/7852d72b653fea0199acf5fc2a84f6f8b84eba8d
- https://github.com/python/cpython/commit/918387e4912d12ffc166c8f2a38df92b6ec756ca
- https://github.com/python/cpython/commit/b1869ff648bbee0717221d09e6deff46617f3e85
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