CVE-2026-110447
Collabora Online – Built-in CODE Server OS Command Injection Vulnerability
Collabora Collabora Online – Built-in CODE Server when used within the NextCloud platform contains an OS command injection vulnerability that allows for remote code execution when the CODE server isn't running.
CISA due Oct 26, 2026
- Collabora Collabora Online – Built-in CODE Server
- Critical
- CVSS 9.2
- EPSS 1.23%
- No fixed version listed
What to do
No fixed version listed
- 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.
- CISA deadline for US federal agencies
- Oct 26, 2026
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| Collabora Collabora Online - Built-in CODE Server | every version | None listed |
Advisories and fixes
- Vendor advisory help.nextcloud.com
Scores and signals
- Exploitation
- Exploited in the wild
- Severity
- Critical, CVSS 9.2 (v4.0, scored by mitre)
- EPSS
- 1.23% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 23, 2026)
- CISA's SSVC decision points
- Exploitation: active. Automatable: yes. Technical impact: total. As of Oct 23, 2026.
- Weakness
- CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
- Vendor
- Collabora, Collabora Online – Built-in CODE Server
Timeline
- Added to CISA's Known Exploited Vulnerabilities catalog: exploited in the wild. US federal agencies must remediate by 2026-10-26.