CVE-2026-17408 in API Connect
Summary
by MITRE • 11/07/2026
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote attacker to execute arbitrary code due to improper neutralization of special elements in an OS command.
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Analysis
by VulDB Data Team • 11/07/2026
The vulnerability identified in IBM API Connect versions ranging from 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 represents a critical security flaw rooted in the improper neutralization of special elements within operating system commands. This specific weakness is formally categorized under CWE-78, which defines Improper Neutralization of Special Elements used in an OS Command, commonly known as OS Command Injection. The core technical issue arises when the application processes user-supplied input or data from external sources and incorporates it directly into a command string that is subsequently passed to the underlying operating system for execution. In these affected versions of IBM API Connect, the sanitization mechanisms are insufficient to strip or escape dangerous characters such as semicolons, ampersands, pipes, or backticks. Consequently, an attacker who can influence this input vector can inject arbitrary shell commands into the context of the application's process.
From a technical perspective, the flaw allows for remote code execution because the compromised component likely operates with elevated privileges necessary to manage API gateways and policies. When the malicious payload is executed by the operating system, it runs within the security context of the IBM API Connect service account. This typically grants the attacker significant control over the host environment, potentially including read access to sensitive configuration files, write access to application directories, or full command execution capabilities depending on the specific deployment permissions. The vulnerability does not require authentication in many scenarios where input vectors are exposed via public-facing APIs or management interfaces that lack strict validation layers before passing data to system-level commands.
The operational impact of this vulnerability is severe, as it effectively compromises the integrity and availability of the API gateway infrastructure. An attacker could use this access to exfiltrate sensitive data processed by the APIs, such as customer credentials or proprietary business logic definitions. Furthermore, the compromised server can be used as a pivot point for lateral movement within the internal network, allowing attackers to target other systems that are not directly exposed to the internet but trust the API gateway host. In worst-case scenarios, the attacker could deploy ransomware, establish persistent backdoors, or disrupt service availability by terminating critical processes or consuming system resources through denial-of-service techniques facilitated by command execution.
This vulnerability aligns with MITRE ATT&CK technique T1059, specifically sub-technique 004 which covers Command and Scripting Interpretation, as well as T1203 for Exploitation for Client Execution if the attack vector involves client-side components triggering server-side processing. To mitigate this risk, organizations must immediately apply the latest security patches provided by IBM that address these specific version ranges. In addition to patching, it is crucial to implement defense-in-depth strategies such as strict input validation and parameterization of all system calls within custom integrations or extensions associated with API Connect. Network segmentation should be enforced to limit the blast radius in case a breach occurs, ensuring that the API gateway hosts are isolated from critical data stores and management networks. Regular security audits focusing on command injection patterns in application code will further reduce exposure to this class of vulnerabilities.