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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 23 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
Title OS Command Injection in Collabora Online Built‑in CODE Server

Fri, 23 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 23 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-10-23T00:00:00+00:00', 'dueDate': '2026-10-26T00:00:00+00:00'}


Fri, 23 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 19 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Collabora
Collabora collabora Online - Built-in Code Server
Vendors & Products Collabora
Collabora collabora Online - Built-in Code Server

Fri, 16 Oct 2026 02:15:00 +0000

Type Values Removed Values Added
Title OS Command Injection in Collabora Online Built‑in CODE Server

Thu, 15 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Title OS Command Injection in Collabora Online Built‑in CODE Server Proxy

Wed, 14 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 14 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
Title OS Command Injection in Collabora Online Built‑in CODE Server Proxy

Wed, 14 Oct 2026 02:45:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-78
References
Metrics cvssV4_0

{'score': 9.2, '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-24T03:55:50.462Z

Reserved: 2026-10-14T02:27:41.637Z

Link: CVE-2026-110447

cve-icon Vulnrichment

Updated: 2026-10-14T19:04:37.530Z

cve-icon NVD

Status : Deferred

Published: 2026-10-14T03:17:20.683

Modified: 2026-10-24T04:18:17.157

Link: CVE-2026-110447

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T22:15:17Z

Weaknesses