CVE-2026-105475

High

Description

Improper neutralization of a NUL byte in cPanel allows remote attackers to read any mail account's calendar and contact data.

SeverityHigh
CVSS8.7
Exploit probability—
ProductcPanel
PublishedNov 2, 2026
First seenNov 4, 2026
Weakness typeCWE-158CWE-158

How to fix

Update
  • WebPros cPanel11.138.0.19, 11.136.0.51, 11.134.0.67, 11.110.0.154 or later

Affected products

ProductAffected versionsFixed in
WebPros cPanelv < 11.138.0.19, v < 11.136.0.51, v < 11.134.0.67, v < 11.110.0.15411.138.0.19, 11.136.0.51, 11.134.0.67, 11.110.0.154

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.