CVE-2026-17102 Overview
CVE-2026-17102 affects IBM DataStage on Cloud Pak for Data version 5.4.0.0. The vulnerability allows a remote authenticated attacker to execute arbitrary operating system commands due to improper neutralization of special elements passed to an OS command [CWE-78]. Successful exploitation compromises the confidentiality, integrity, and availability of the underlying host. The flaw requires low privileges and no user interaction, and it can be triggered over the network. IBM has published a support advisory addressing the issue.
Critical Impact
An authenticated remote attacker can execute arbitrary OS commands on the DataStage host, leading to full compromise of the affected Cloud Pak for Data workload.
Affected Products
- IBM DataStage on Cloud Pak for Data 5.4.0.0
Discovery Timeline
- 2026-09-22 - CVE-2026-17102 published to NVD
- 2026-09-23 - Last updated in NVD database
Technical Details for CVE-2026-17102
Vulnerability Analysis
CVE-2026-17102 is an OS command injection vulnerability in IBM DataStage on Cloud Pak for Data 5.4.0.0. The product fails to properly neutralize special elements before passing user-controlled input to an operating system shell. An authenticated attacker with low-level privileges can inject shell metacharacters into an affected parameter to execute arbitrary commands under the DataStage service account. Because DataStage typically runs with elevated privileges to orchestrate data pipelines, command execution can lead to data exfiltration, pipeline tampering, and lateral movement into adjacent Cloud Pak for Data services.
Root Cause
The root cause is improper neutralization of special elements used in an OS command, classified under [CWE-78]. Input reaching a shell interpreter is not sanitized or parameterized, allowing metacharacters such as ;, |, &, and backticks to break out of the intended command context. See the IBM Support Page for the vendor's technical description.
Attack Vector
The attack vector is network-based and requires authenticated access to the DataStage interface or API. An attacker submits crafted input to a vulnerable endpoint that constructs an OS command from user-controlled data. The injected payload is executed by the underlying shell with the privileges of the DataStage process. No user interaction is required, which enables scripted exploitation once valid credentials are available.
No public proof-of-concept exploit is currently listed for CVE-2026-17102. Refer to the IBM Support Page for vendor-provided details on the vulnerable component.
Detection Methods for CVE-2026-17102
Indicators of Compromise
- Unexpected child processes such as sh, bash, /bin/sh -c, nc, curl, or wget spawned by DataStage service processes.
- Outbound network connections from DataStage pods to unknown external hosts, particularly on non-standard ports.
- Anomalous entries in DataStage application logs containing shell metacharacters (;, |, &&, backticks) in job parameters or API request bodies.
- New or modified files under DataStage working directories that do not correspond to scheduled pipeline runs.
Detection Strategies
- Baseline the normal process tree of DataStage services in Cloud Pak for Data and alert on deviations, especially shell interpreters spawned as child processes.
- Enable audit logging for authenticated DataStage API calls and correlate parameter values against a deny-list of shell metacharacters.
- Inspect Kubernetes audit logs and container runtime telemetry for unexpected exec activity in DataStage pods.
Monitoring Recommendations
- Forward DataStage, Cloud Pak for Data, and Kubernetes audit logs to a centralized SIEM for correlation with authentication events.
- Monitor egress traffic from DataStage workloads and flag connections to IPs outside sanctioned data source ranges.
- Track privileged account usage on the Cloud Pak for Data cluster and alert on new service account token requests originating from DataStage pods.
How to Mitigate CVE-2026-17102
Immediate Actions Required
- Apply the remediation published by IBM on the IBM Support Page for DataStage on Cloud Pak for Data 5.4.0.0.
- Restrict DataStage access to trusted, authenticated users and revoke unnecessary accounts capable of submitting jobs or API requests.
- Rotate credentials and service account tokens used by DataStage if compromise is suspected.
- Review recent DataStage job definitions and API calls for injected shell metacharacters.
Patch Information
IBM has published remediation guidance for CVE-2026-17102 on its support portal. Consult the IBM Support Page for the fixed version, upgrade procedure, and any interim fixes applicable to Cloud Pak for Data 5.4.0.0.
Workarounds
- Enforce least-privilege role-based access control in Cloud Pak for Data so that only necessary users can create or execute DataStage jobs.
- Place a Web Application Firewall (WAF) in front of the DataStage API to filter payloads containing shell metacharacters.
- Apply Kubernetes NetworkPolicies to restrict egress from DataStage pods to only required data sources.
- Disable or isolate the affected DataStage instance until the vendor patch is applied if exposure cannot be reduced through access controls.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.