CVE-2026-17295 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 authenticated attacker to obtain sensitive information due to path traversal.
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Analysis
by VulDB Data Team • 11/07/2026
The vulnerability identified in IBM API Connect versions 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 improper input validation regarding file path handling. This specific weakness is classified under the Common Weakness Enumeration as CWE-22, which denotes Improper Limitation of a Pathname to a Restricted Directory, commonly known as path traversal or directory traversal. The core technical issue arises when the application processes user-supplied input that includes relative paths such as dot-dot-slash sequences without adequate sanitization or canonicalization checks. This allows an attacker to manipulate file system operations by navigating outside the intended restricted directories and accessing files located in arbitrary locations on the underlying operating system.
For this vulnerability to be exploited, a remote authenticated attacker is required to interact with specific API endpoints within the IBM API Connect management plane or gateway components. The authentication requirement indicates that while the attack vector is network-based, it does not offer unauthenticated access to sensitive data by default. However, in many enterprise environments, compromised credentials for lower-privileged service accounts can be obtained through phishing, credential stuffing, or other lateral movement techniques, thereby lowering the barrier for exploitation. Once authenticated, the attacker crafts requests containing malicious path traversal payloads designed to escape the sandboxed environment of the API management interface and read sensitive configuration files, internal logs, database connection strings, or private keys stored on the server file system.
The operational impact of this vulnerability is significant as it facilitates unauthorized information disclosure that can serve as a stepping stone for further attacks. By extracting sensitive configuration data, an attacker may gain insights into the network topology, backend service endpoints, and authentication mechanisms used by the organization. This intelligence can be leveraged to craft more targeted attacks against internal services or to escalate privileges within the API Connect environment itself. In severe cases, if combined with other vulnerabilities such as insecure deserialization or command injection, this information disclosure could lead to complete system compromise. The exposure of private keys is particularly dangerous as it may allow an attacker to decrypt intercepted traffic or impersonate legitimate clients and servers, effectively breaking the trust model established by TLS communications within the API gateway infrastructure.
Mitigation strategies must focus on both immediate remediation and long-term architectural hardening. The primary defense is to apply the vendor-provided security patches that address this specific version range immediately upon availability. IBM has released updates for versions 10.0.8.x and 12.1.x that correct the input validation logic to ensure that all file path requests are strictly confined within their designated directories. In addition to patching, organizations should implement defense-in-depth measures such as strict access controls on API management interfaces, ensuring that only authorized administrators have access to sensitive endpoints. Network segmentation can also limit the blast radius by isolating the API Connect components from critical backend systems and data stores. Furthermore, deploying Web Application Firewalls with rules specifically tuned to detect path traversal patterns like dot-dot-slash sequences can provide an additional layer of protection against exploitation attempts while patching is being implemented across the environment.
From a threat intelligence perspective, this vulnerability aligns with MITRE ATT&CK technique T1083, which covers File and Directory Discovery, as well as T1530, Data from Local System, reflecting how attackers use such flaws to gather information for subsequent phases of an intrusion campaign. Security teams should monitor logs for unusual file access patterns or requests containing encoded traversal sequences targeting the API Connect management console. Regular vulnerability scanning focused on web application and API security is essential to identify similar misconfigurations in other components of the infrastructure, ensuring a robust posture against exploitation attempts that leverage path manipulation weaknesses.