CVE-2026-3644

HighCVSS 7.5/10Last modified Aug 13, 2026

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().

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-20 CWE-116

Affected software

No affected versions have been published.

Timeline

Published: Mar 16, 2026
Last modified: Aug 13, 2026
NVD status: Modified

Related CVEs from 2026

CVE-2026-36455.3The Punnel – Landing Page Builder plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.3.1. T CVE-2026-364537.4Rhymix before 2.1.31 allows insecure direct object reference, aka RVE-2026-1. Arbitrary files can be accessed via extra variables.CVE-2026-364589.8ChestnutCMS v1.5.10 has a SQL injection vulnerability. The content parameter of the cms_content tag can be manipulated in the admin backend CVE-2026-36465.3The LTL Freight Quotes – R+L Carriers Edition plugin for WordPress is vulnerable to Missing Authorization via the plugin's webhook handler i CVE-2026-364604.8Dovestones Softwares ADPhonebook before v4.0.1.1 is vulnerable to a Cross Site Scripting vulnerability. The /Admin/Save API allows an authen CVE-2026-364677.2Unrestricted Upload of File with Dangerous Type in core/modules/media.php in CuteNews v.2.1.2 allows remote authenticated users with access CVE-2026-364686.1Cross-site Scripting (XSS) in index.php in CuteNews v.2.1.2 allows remote unauthenticated attackers to supply an arbitrarily named URL param CVE-2026-364699.1CuteNews v.2.1.2 is vulnerable to Server-Side Request Forgery (SSRF) in core/modules/media.php -- upload_from_inet (Media Manager's "Upload CVE-2026-364705.8CuteNews v.2.1.2 is vulnerable to Cross Site Scripting (XSS) in index.php. The value of the "Referer" header is copied into the response HTM CVE-2026-364715.8Deserialization of Untrusted Data of the __post_data parameter in cn_parse_url() in CuteNews v.2.1.2 allows a remote attacker to inject arbi CVE-2026-364725.2CuteNews v.2.1.2 is vulnerable to Cross Site Scripting (XSS). Improper neutralization of the __referer value 2.0.1 allows a remote attacker CVE-2026-364787.5An issue in Technitium DNS Server v.14.3 and before allows a remote attacker to cause a denial of service via the DnsServerApp.exe, DnsServe