Critical cPanel Flaw Could Let One Hosting Customer Take Root Control of a Whole Server
cPanel has released patches for a security flaw affecting domain parking and addon domain functionality in cPanel and WebHost Manager (WHM), which could allow code execution as the root user. The vulnerability, assigned the CVE identifier CVE-2026-65643, impacts all supported versions of cPanel & WHM. cPanel described the issue as a critical security vulnerability and said that an
What happened
cPanel has released patches for a security flaw affecting domain parking and addon domain functionality in cPanel and WebHost Manager (WHM), which could allow code execution as the root user. The vulnerability, assigned the CVE identifier CVE-2026-65643, impacts all supported versions of cPanel & WHM. cPanel described the issue as a critical security vulnerability and said that an
Why it matters
The incident may affect operational continuity, asset safety or trust around Security. Watch for verified scope and remediation.
Affected entities
View evidence
1 reports · 1 original report · 1 independent
- The Hacker NewsPrimary source · Supports · EN · 100%Critical cPanel Flaw Could Let One Hosting Customer Take Root Control of a Whole Server ↗
Claims
- Critical cPanel Flaw Could Let One Hosting Customer Take Root Control of a Whole Server Reported
Conflicts
No material conflict detected in the available evidence.
Timeline
- First reported
Market move following event
Market reaction is not yet available for this asset and time window.