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Updated 6 this weekFix "proxy_lock refused proxy backend" errors on Plesk 18.0.82
Plesk 18.0.82 Update 2 and 18.0.81 Update 7 add mod_proxy_lock, which blocks AJP and Unix-socket proxies. How to confirm it and fix it without losing the check.
cPanel CVE-2026-105476 and 105475: root file write, data leak
cPanel's 20 October notice fixes a root-owned file write (CVE-2026-105476, CVSS 8.8) and an unauthenticated calendar and contacts leak (CVE-2026-105475). Fixed builds and checks.
WHMCS 8.13 and 9.0 end of life: upgrade to 9.1 before 2027
WHMCS 8.13 and 9.0 stop receiving security fixes on 31 December 2026. What changes in 9.1, the ionCube and PHP order that matters, and when Blesta is the better move.
LiteSpeed LSQUIC HTTP/3 critical flaw: update to 6.3.7 build 8
A critical LSQUIC flaw hits LiteSpeed Enterprise, OpenLiteSpeed, and Web ADC servers with HTTP/3 on. Patch to 6.3.7 build 8 before public disclosure on 16 November 2026.
Migrate an InterWorx server from RHEL to AlmaLinux
Move an InterWorx server off RHEL onto AlmaLinux — new-box Mass Import or in-place almalinux-deploy, backup.pex and import.pex flags, licence overlap, and cutover.
CVE-2026-98432: remote kernel TCP flaw on CloudLinux servers
CVE-2026-98432 is a remote use-after-free in the kernel's IPv4 TCP code. Affected CloudLinux versions, fixed kernels, the Red Hat nftables mitigation, and KernelCare status.
Fix intermittent 502 errors on cPanel webmail service subdomains
Fix intermittent 502 Bad Gateway errors on cPanel webmail, cpanel, and whm service subdomains after a 136 or 138 update, using a two-line Apache include.
Plesk Obsidian 18.0.82 release notes: what hosts need to know
Plesk Obsidian 18.0.82 fixes an admin MFA bypass, adds a Python extension and Node.js Toolkit CLI, drops Debian 11, and Update 1 patches Brotli CVE-2026-111497.
ZDI-CAN-33367: leaked kernel local root zero-day on CloudLinux
ZDI-CAN-33367 is a public-exploit kernel local root with no CVE yet. Which CloudLinux versions are exposed, the user namespace mitigation, beta kernels, and KernelCare status.
cPanel AI App Hosting: enable Node.js apps for customers
How to enable cPanel AI App Hosting on a v138 server: the Web Apps feature, the customer deploy flow, MySQL, health checks, CloudLinux quirks, and cleaning up deploy files.
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