CVE-2026-110005 in Komodo
Summary
by MITRE • 10/14/2026
The `periphery` agent's container-management functionality of Komodo version 2.2.0 contains an OS command injection vulnerability. An authenticated low-privileged user with `Execute`, or `Read` plus `Logs`, permission on a managed server can supply shell metacharacters in a container name processed by the `DestroyContainer` or `SearchContainerLog` operations. The container name is interpolated without escaping into a command executed using `sh -c`, allowing arbitrary commands to execute as root on the managed host. This permits a user without Komodo's `Terminal` permission to obtain unrestricted host-level command execution.
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Analysis
by VulDB Data Team • 10/14/2026
The vulnerability identified in Komodo version 2.2.0 represents a critical security flaw within the periphery agent, specifically affecting its container-management functionality. The core issue is an operating system command injection that arises from improper neutralization of special elements used in shell commands. This defect allows authenticated users with low-privileged access levels to escalate their privileges significantly beyond what was intended by the application's permission model. Specifically, any user possessing either Execute permissions or a combination of Read and Logs permissions on a managed server can exploit this flaw. The attack vector involves supplying malicious input containing shell metacharacters within the container name parameter during specific operations such as DestroyContainer or SearchContainerLog.
From a technical perspective, the root cause lies in how the application constructs system commands for execution. When processing these operations, the software interpolates the user-supplied container name directly into a command string that is subsequently executed via sh -c. Crucially, this interpolation occurs without any form of escaping or sanitization of special characters. In shell environments, metacharacters such as semicolons, pipes, and ampersands serve as delimiters for separate commands. By injecting these characters into the container name field, an attacker can terminate the intended command context and append arbitrary system commands to be executed by the underlying operating system interpreter.
The operational impact of this vulnerability is severe due to the execution context in which the compromised code runs. The periphery agent operates with elevated privileges on the managed host, often running as root or a similarly privileged service account. Consequently, when an attacker successfully injects and executes commands through this flaw, those commands are run with the same high-level permissions as the agent itself. This results in unrestricted command execution at the host level, effectively granting the attacker full control over the underlying operating system of the managed server.
This vulnerability fundamentally undermines the principle of least privilege within the Komodo architecture. The application design intended to restrict certain actions based on user roles, such as preventing low-privileged users from accessing terminal sessions via the Terminal permission. However, this command injection flaw provides an alternative pathway that bypasses these restrictions entirely. An attacker who lacks explicit Terminal permissions can still achieve remote code execution equivalent to a full shell session, thereby negating the security boundaries established by the role-based access control mechanisms.
In terms of industry standard classifications, this vulnerability aligns with CWE-78 Improper Neutralization of Special Elements used in an OS Command, commonly known as OS Command Injection. It also relates to CWE-269 Improvement of Privilege, as it allows a lower-privileged user to gain higher-level access. From the perspective of the MITRE ATT&CK framework, this technique corresponds to T1059 Command and Scripting Interpreter, specifically leveraging shell commands for lateral movement or persistence after initial compromise. The exploitation method described fits within the broader category of privilege escalation through application logic flaws rather than traditional buffer overflows or memory corruption issues.
Mitigation strategies must address both immediate remediation and long-term architectural improvements. The primary fix involves implementing strict input validation and output encoding for all user-supplied data that is passed to system commands. Developers should avoid using sh -c with interpolated variables whenever possible, opting instead for direct execution of binaries with arguments as separate array elements in the programming language's process management APIs. If shell interpretation is unavoidable, rigorous whitelisting of allowed characters or robust escaping mechanisms must be applied before command construction. Additionally, applying the principle of least privilege to the periphery agent itself by running it with minimal necessary permissions can reduce the blast radius if such vulnerabilities are discovered in the future. Regular security code reviews and static application security testing focused on injection flaws are essential to prevent similar issues from recurring in other parts of the software suite.