{"cve":"CVE-2026-110447","nvd":{"published":"2026-10-14T03:17:20.683","modified":"2026-10-26T12:01:31.130","status":"Undergoing Analysis","description":"Collabora Online Built-in CODE Server before 26.4.303 (richdocumentscode), a Nextcloud app, allows remote code execution, as exploited in the wild in September and October 2026, a different vulnerability than CVE-2025-66208. This is an OS command injection in proxy.php when the CODE server isn't running (e.g., the product was recently restarted). The vulnerability is not present in standalone Collabora Online servers; only this deployment with CODE Server is affected.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.2},"cvss_v3":null,"cwes":["CWE-78"],"references":["https://github.com/CollaboraOnline/richdocumentscode/issues/354","https://help.nextcloud.com/t/to-collabora-built-in-user-update-asap/250516","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-110447"],"products":[],"source":"nvd","synced_at":"2026-10-26T12:19:17.610608965+00:00"},"epss":{"cve":"CVE-2026-110447","score":0.12328,"percentile":0.96163,"date":"2026-10-25"},"kev":{"cve":"CVE-2026-110447","date_added":"2026-10-23","due_date":"2026-10-26","vendor":"Collabora","product":"Collabora Online – Built-in CODE Server","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}