CVE-2026-0672

Public on 2026-01-20
Modified on 2026-01-23
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.
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
4.8
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core python 2026-03-06 ALAS2-2026-3185 Fixed
Amazon Linux 2 - Core python3 2026-03-06 ALAS2-2026-3184 Fixed
Amazon Linux 2023 python3.11 2026-03-05 ALAS2023-2026-1447 Fixed
Amazon Linux 2023 python3.12 2026-02-18 ALAS2023-2026-1444 Fixed
Amazon Linux 2023 python3.13 2026-02-18 ALAS2023-2026-1437 Fixed
Amazon Linux 2023 python3.9 Pending Fix

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N