cPanel Patch Fixes Critical Authentication Flaw Across Supported Versions
cPanel released security updates to fix a critical authentication vulnerability across all supported versions, listing patched builds (11.110.0.97, 11.118.0.63, 11.126.0.54, 11.132.0.29, 11.134.0.20, 11.136.0.5); Namecheap temporarily blocked cPanel/WHM ports 2083 and 2087 as a precaution, with patches rolling out and some servers already updated as of April 29, 2026.