CVE-2026-2234 CRITICAL

CVE-2026-2234: HGiga|C&Cm@il - Missing Authentication

Vendor Hgiga
Product C&Cm@il package olln-base
Weakness CWE-306 · Missing auth
Published February 9, 2026
Last update February 9, 2026

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

C&Cm@il developed by HGiga has a Missing Authentication vulnerability, allowing unauthenticated remote attackers to read and modify any user's mail content.

Key dates

02Disclosure timeline

February 9, 2026 CVE published
February 9, 2026 Record updated