CVE-2026-3644

medium Red Hat
CVSS v3 Base Score
5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Published: March 16, 2026 (59 days ago)
Last Modified: March 16, 2026
Vendor: Red Hat
Source: REDHAT

Description

A control character validation flaw has been discovered in the Python http.cookie module. The Morsel.update(), |= operator, and unpickling paths were not patched to resolve CVE-2026-0672, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the output validation applied to BaseCookie.output().

CWE

CWE-791

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9Red Hat Enterprise Linux AI (RHEL AI) 3

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com 🔗 github.com