CuraSec

Act active

Hackers exploit Collabora RCE flaw to backdoor Nextcloud servers

2026-10-16 15:21 UTC · BleepingComputer · read the source ↗ #nextcloud#rce#active-exploitation
  • Engineer — Act: Active exploitation of CVE-2026-110447 in the richdocumentscode Nextcloud app with a public PoC means any self-hosted Nextcloud instance running the built-in CODE Server is at immediate risk of RCE and backdoor implantation; patch the richdocumentscode app to the latest fixed version now and audit server filesystem and process history for signs of post-exploitation activity.
  • SOC/IR — Act: With confirmed active exploitation leading to backdoor deployment, assume any Nextcloud server running richdocumentscode may already be compromised; sweep Nextcloud hosts for anomalous child processes from the CODE Server, unexpected outbound connections, and persistence mechanisms (cron, systemd units, webshells) established since this CVE’s disclosure window.
  • Leader — Skip
  • Signals: CVE-2026-110447 — CISA KEV: not listed, EPSS 0.01, public PoC on GitHub
This entry was curated and judged by AI (Claude) with automated enrichment (CISA KEV / EPSS / public PoC). Verify against the original source before acting. Found a bad verdict? Report it — confirmed errors go to the corrections log.