CVE-2026-67961 in O2OA
Summary
by MITRE • 08/18/2026
An issue in O2OA v.10.0.2 allows a local attacker to execute arbitrary code via the the sandbox mechanism of the Invoke script execution.
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Analysis
by VulDB Data Team • 08/18/2026
The vulnerability identified in O2OA version 10.0.2 represents a critical failure in the application's security boundary, specifically within its sandboxed environment designed for executing scripts. This flaw allows an attacker with local access to bypass isolation mechanisms and achieve arbitrary code execution on the host system. The core of this issue lies in how the Invoke script execution feature handles context boundaries and resource allocation. While O2OA employs a sandboxing strategy intended to restrict untrusted or semi-trusted code from accessing sensitive system resources, the implementation contains logical errors that permit escape from these confined environments. This type of vulnerability is particularly dangerous because it undermines one of the primary defense-in-depth layers used in modern web application frameworks to prevent remote code execution and privilege escalation.
From a technical perspective, the flaw stems from an improper isolation mechanism within the script engine or runtime environment. When scripts are invoked through the designated interface, the system fails to adequately sanitize inputs or restrict access to underlying operating system commands and file systems. This misconfiguration effectively creates a path for local attackers to interact with components that should remain inaccessible. By exploiting this weakness, an attacker can inject malicious payloads into the execution flow, leveraging the privileges of the application process itself. The sandbox mechanism, which is supposed to act as a barrier against such intrusions, proves ineffective due to incomplete enforcement of access controls or improper handling of inter-process communication channels within the virtualized script context.
The operational impact of this vulnerability is severe for any organization running O2OA 10.0.2 with local user accounts that have permission to trigger script executions. An attacker who gains local access, whether through compromised credentials, physical access, or a prior foothold in a less privileged service, can escalate their privileges significantly. By executing arbitrary code within the context of the application server, they may gain control over sensitive data stored by the platform, modify system configurations, install backdoors, or use the machine as a pivot point for further attacks against other networked systems. This effectively transforms a local access issue into a potential full compromise of the infrastructure hosting the O2OA instance.
This vulnerability aligns with CWE-94 Improper Control of Generation of Code (Code Injection) and CWE-78 Improper Neutralization of Special Elements used in an OS Command (OS Command Injection), as it involves the unauthorized execution of code or commands within a restricted environment. In terms of tactical mapping, this falls under MITRE ATT&CK technique T1059 Command and Scripting Interpreter, specifically where attackers leverage built-in system tools to execute malicious actions without deploying external malware binaries. The exploitation path also relates to privilege escalation vectors where local users exploit application logic flaws to gain higher-level access rights than intended by the security policy.
To mitigate this risk, immediate action is required for all deployments of O2OA version 10.0.2. Organizations should apply the vendor-provided patch or upgrade to a newer version that addresses these sandboxing deficiencies as soon as possible. Until patches are applied, administrators should restrict local access to the server hosting O2OA and enforce strict network segmentation to limit exposure. Additionally, reviewing user permissions is crucial; only trusted users with legitimate business needs should be granted the ability to invoke scripts or execute code within the platform. Implementing robust input validation and ensuring that all script execution contexts are strictly isolated from host-level resources can further reduce the attack surface. Regular security audits and penetration testing focused on application logic flaws will help identify similar vulnerabilities before they can be exploited in production environments.