CVE-2026-112015 in Omnigent
Summary
by MITRE • 10/18/2026
Omnigent 0.3.0 before 0.14.0 contains a path traversal vulnerability that allows authenticated users to escape the workspace by setting os_env.cwd on nested sub-agents. Attackers can upload a bundle whose sub-agent uses an absolute or parent-traversing working directory, bypassing root-only validation in bundles.py, to read and write host files as the runner user.
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Analysis
by VulDB Data Team • 10/18/2026
The vulnerability identified in Omnigent versions prior to 0.14.0 represents a critical path traversal flaw that compromises the integrity of isolated execution environments. This security defect specifically affects authenticated users who possess the ability to configure nested sub-agents within the platform's workflow orchestration system. The core technical failure lies in how the application handles the working directory configuration, designated as os_env.cwd, for these subordinate agents. When a user defines a bundle containing such an agent, they can manipulate this environment variable to specify either absolute paths or relative paths that utilize parent-directory traversal sequences like dot-dot-slash. This manipulation allows the execution context of the sub-agent to escape its intended sandboxed workspace and access arbitrary locations on the underlying host operating system file hierarchy.
The mechanism enabling this exploitation is rooted in insufficient input validation within the bundles.py module, which serves as a primary gatekeeper for bundle processing logic. Although the application implements root-only validation checks designed to restrict certain operations or paths to privileged users, these safeguards are effectively bypassed when dealing with nested sub-agents. The system fails to sanitize or normalize the working directory path provided by the authenticated user before applying it to the subprocess execution environment. Consequently, an attacker can craft a malicious bundle where the sub-agent's configuration points outside the designated workspace boundaries. This lack of strict canonicalization allows the application to resolve paths that traverse up through parent directories, ultimately granting access to sensitive host files and directories that should remain inaccessible to standard users.
The operational impact of this vulnerability is severe, as it leads directly to unauthorized file system read and write operations under the context of the runner user account. By exploiting this path traversal flaw, an attacker can exfiltrate confidential data stored on the host machine or inject malicious content into critical system files. This capability undermines the fundamental security principle of least privilege and isolation that is essential for multi-tenant environments or applications handling untrusted inputs. The ability to write to arbitrary locations may further facilitate persistent access, code execution via library injection, or disruption of other services running under the same user context. Such actions can lead to significant data breaches, service degradation, and potential lateral movement within a compromised network infrastructure if the runner account possesses elevated privileges relative to other system components.
From an industry standards perspective, this vulnerability aligns with CWE-22: Improper Limitation of a Pathname to a Restricted Directory, which describes flaws where software does not properly neutralize special elements that can cause paths to traverse outside intended directories. Additionally, the exploitation technique maps to MITRE ATT&CK techniques related to Command and Scripting Interpreter abuse or File and Directory Discovery, specifically how attackers leverage misconfigured environments to access restricted resources. The attack vector is classified as local with authentication requirements, indicating that while remote unauthenticated exploitation is not possible, any authenticated user can trigger this flaw without requiring additional social engineering or physical access.
To mitigate this vulnerability, organizations must immediately upgrade Omnigent to version 0.14.0 or later, where the developers have addressed the path validation logic in bundles.py. In addition to upgrading, administrators should enforce strict input sanitization for all working directory parameters passed to sub-agents, ensuring that only whitelisted absolute paths within predefined workspace boundaries are accepted. Implementing robust canonicalization routines before path resolution can prevent traversal sequences from being interpreted correctly by the operating system. Furthermore, applying principle of least privilege principles to the runner user account is crucial; this involves restricting file system permissions so that even if an attacker succeeds in escaping the sandbox, their ability to read or write sensitive host files remains limited. Regular security audits and static code analysis focused on path handling logic can help identify similar weaknesses before they are exploited in production environments.