CVE-2026-120461 in Jpom
Summary
by MITRE • 11/02/2026
Jpom through 2.11.12 contains a cross-workspace authorization bypass in POST /node/ssh_command/batch that resolves command templates and SSH nodes by ID without workspace filtering. Authenticated users with SSH command execute permission in one workspace can supply foreign template and node IDs to run commands on other workspaces' SSH hosts using their stored credentials.
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Analysis
by VulDB Data Team • 11/02/2026
The vulnerability identified in Jpom versions through 2.11.12 represents a critical failure in access control mechanisms, specifically categorized as an authorization bypass within the application's command execution module. This flaw is rooted in the improper implementation of workspace isolation for SSH-based remote management operations. In multi-tenant or segmented deployment environments, workspaces are designed to act as logical boundaries that restrict user access and operational scope to specific sets of resources. However, the endpoint POST /node/ssh_command/batch fails to enforce these boundaries when resolving command templates and target SSH nodes by their unique identifiers. The system accepts input parameters containing node IDs and template IDs without validating whether those resources belong to the workspace associated with the authenticated user's current session or permissions.
From a technical perspective, this constitutes an IDOR vulnerability where the application relies solely on client-supplied identifiers rather than server-side authorization checks that map these identifiers to the user's authorized scope. An attacker who has obtained valid credentials for any account possessing SSH command execution privileges within one workspace can manipulate request parameters to reference nodes and templates belonging to other workspaces. Because the backend logic resolves resources by ID without cross-referencing against a whitelist of allowed resources for the current context, it blindly executes commands on the specified remote hosts using the stored credentials associated with those targets. This effectively nullifies the security boundary between different organizational units or project spaces managed within the same Jpom instance.
The operational impact of this vulnerability is severe, as it allows authenticated users to escalate their effective privileges beyond their assigned workspace boundaries. By leveraging foreign node IDs, an attacker can execute arbitrary commands on SSH hosts that are logically isolated from their own environment. This capability enables unauthorized remote code execution across multiple systems, potentially leading to data exfiltration, lateral movement within the network infrastructure, and compromise of sensitive services hosted on those nodes. The use of stored credentials for these foreign nodes means the attack does not require additional credential harvesting or brute-forcing; it exploits the trust relationship already established between Jpom and its managed SSH hosts.
This flaw aligns with CWE-269, Improper Privilege Management, as well as CWE-862, Missing Authorization, because the application fails to enforce proper access control policies for specific resources. In terms of offensive security frameworks, this behavior is consistent with MITRE ATT&CK technique T1078, Valid Accounts, where an attacker uses legitimate credentials to bypass perimeter defenses and gain unauthorized access to restricted areas or systems. The batch nature of the endpoint further amplifies the risk by allowing multiple commands to be dispatched simultaneously across disparate workspaces in a single request cycle.
Mitigation strategies must prioritize immediate patching to version 2.11.13 or later, where this authorization logic has been corrected to enforce strict workspace filtering during resource resolution. For environments that cannot immediately upgrade, administrators should implement network-level controls such as firewall rules to restrict access to the Jpom management interface and ensure that SSH keys are not shared across workspaces unnecessarily. Additionally, implementing a Web Application Firewall with specific rule sets to detect anomalous patterns in ID parameters may provide temporary protection against exploitation attempts while permanent fixes are deployed. Regular auditing of user permissions and workspace assignments is also recommended to minimize the blast radius if such vulnerabilities exist in other modules.