CVE-2026-110447

UNKNOWN

CISA KEV

Published 2026-10-14 · Updated 2026-10-24 · Source cve@mitre.org

Summary

CVE-2026-110447 is a vulnerability in Collabora Collabora Online – Built-in CODE Server. CISA added it to the Known Exploited Vulnerabilities catalog on October 23, 2026, which means exploitation in the wild has been confirmed; US federal agencies must remediate it by October 26, 2026. CISA does not currently list it as used in ransomware campaigns.

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.

CWE-78

CISA Known-Exploited Vulnerability

Product: Collabora — Collabora Online – Built-in CODE Server

Name: Collabora Online – Built-in CODE Server OS Command Injection Vulnerability

Date added: 2026-10-23 · Due: 2026-10-26

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

References

View on NVD

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