CRITICAL CISA KEV

CVE-2026-41940

CVSS v3

9.8

CRITICAL

EPSS Score

28.4 %

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

Description

cPanel and WHM versions after 11.40 contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.

CISA Known Exploited Vulnerability

Date Added: 2026-04-30
Patch Due Date: 2026-05-03
Ransomware Use: Unknown

Technical details

Published: 2026-04-29
Exploit-DB: EDB-52574

Frequently asked questions

What is CVE-2026-41940?

cPanel and WHM versions after 11.40 contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.

Is CVE-2026-41940 actively exploited?

Yes. CVE-2026-41940 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 5/3/2026.

What is the CVSS score for CVE-2026-41940?

CVE-2026-41940 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2026-41940 affecting your environment?

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