Vulnerabilities CVE-2026-3644

CVE-2026-3644

Medium

Open

TLP:CLEAR

Incomplete control character validation in http.cookies

NVD CVE.org

AI Analysis

No AI analysis yet.

Description

The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the output validation applied to BaseCookie.output().

Details

CVSS Score: 6.0
EPSS Score ⓘ: 0.48%

39th percentile
CVSS Vector: 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
Confidence: 90%
Published: Mar 16, 2026
Last Modified: Aug 13, 2026

Notes

No notes yet. Click "Add Note" to create the first analysis note.

Opinions

No opinions yet. Be the first to assess this intelligence.