Moole Vulnerability Database

Find real vulnerabilities before they ship

Medium

CVE-2026-0672

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.

VectorNETWORK

PublishedJan 20, 2026, 22:15

Published Bycna@python.org

Base Score

Score6

Affected Versions

No affected versions found.

References

https://github.com/python/cpython/commit/62700107418eb2cca3fc88da036a243ea975f172
https://github.com/python/cpython/commit/712452e6f1d4b9f7f8c4c92ebfcaac1705faa440
https://github.com/python/cpython/commit/7852d72b653fea0199acf5fc2a84f6f8b84eba8d
https://github.com/python/cpython/commit/918387e4912d12ffc166c8f2a38df92b6ec756ca
https://github.com/python/cpython/commit/95746b3a13a985787ef53b977129041971ed7f70
https://github.com/python/cpython/commit/b1869ff648bbee0717221d09e6deff46617f3e85
https://github.com/python/cpython/issues/143919
https://github.com/python/cpython/pull/143920
https://mail.python.org/archives/list/security-announce@python.org/thread/6VFLQQEIX673KXKFUZXCUNE5AZOGZ45M/

Weakness Type

CWE-93

CVSS Metrics

Base Score

Vector String

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

Base SeverityMedium

Version

4.0

Attack Vector (AV)

NETWORK