**Yes, there's a major ongoing wave of compromises hitting cPanel/WHM servers right now, tied to a critical vulnerability (CVE-2026-41940).**
This is a pre-authentication bypass (via CRLF injection in the login/session flow) that lets unauthenticated attackers gain full control of exposed cPanel & WHM (and WP Squared) instances. It affects all versions after 11.40. Exploitation has been happening in the wild since at least late February (as a zero-day), but it exploded after public details and PoCs dropped around April 28–29, with a massive surge on May 1.
### Key details on the scale and impact:
- **Thousands of servers hit quickly**: On May 1 alone, there was a huge spike — ~15,300 new malicious/compromised cPanel hosts (making up ~80% of new compromises that day in some tracking). Multiple campaigns are active.
- Attackers are deploying **Mirai botnet variants** (e.g., "nuclear.x86") for DDoS/IoT-style abuse on some servers.
- Others are hit with **".sorry" ransomware**, which encrypts files (often visible in open directories) and affects thousands more.
- Targets concentrate on VPS/cloud providers (DigitalOcean, Contabo, OVH, etc.). Roughly 1–1.5 million cPanel instances are exposed on the internet, making mass scanning/exploitation easy.
cPanel released emergency patches on April 28. CISA added it to the Known Exploited Vulnerabilities catalog, urging quick action.
### What you should do if you run or use cPanel/WHM servers:
- **Patch immediately** — Use the updater (`/scripts/upcp --force`) or your host's tools. Check your version.
- Rotate credentials, review logs for suspicious auth/activity (especially around late April–May 1), and scan for indicators like the ".sorry" files, unusual binaries, or Mirai C2 traffic.
- If unpatched and internet-exposed, assume compromise and rebuild if possible.
- Hosting providers have been blocking ports temporarily and pushing updates.
This isn't the earlier Stryker incident (March 2026 Iran-linked wiper attack on ~80k–200k devices via Microsoft Intune abuse) — that's weeks old. The current buzz is specifically this cPanel wave.
If you're seeing this on specific servers or have more details (e.g., error messages, hosting provider), I can help narrow it down further. Stay safe and patch!