CVE Watch30 de out. de 2026

CVE-2026-110447

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

CVSS

9.8

Crítica

EPSS

73.3%

p99

KEV

SIM

23 de out. de 2026

Exploit Today

0-100

Publicado: 14 de out. de 2026 · Última mod.: 30 de out. de 2026 · CWE-78

EPSS · 30d

1.2%EPSS · 30 dias73.3%

2026-10-142026-11-05

Ficha do catálogo KEV

Produto

Collabora / Collabora Online – Built-in CODE Server

Vulnerabilidade

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

Adicionado ao KEV

23 de out. de 2026

Corrigir até

26 de out. de 2026

Uso conhecido em ransomware

Não

Descrição resumida

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.

Ação necessária

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.

Notas

https://help.nextcloud.com/t/to-collabora-built-in-user-update-asap/250516 ; https://github.com/CollaboraOnline/online/security/advisories/GHSA-g3vx-3m76-fghh ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-110447

Descrição técnica

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.

Referências oficiais

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