CVE-2026-80379 Overview
IBM DataStage on Cloud Pak for Data 5.4.0.0 contains an OS command injection vulnerability [CWE-78]. A remote authenticated attacker can execute arbitrary operating system commands on the underlying host. The flaw stems from improper neutralization of special elements passed to an OS command. Successful exploitation compromises confidentiality, integrity, and availability of the affected data integration platform.
Critical Impact
Authenticated attackers can execute arbitrary OS commands on the DataStage host, enabling full compromise of the data integration environment and any connected data sources.
Affected Products
- IBM DataStage on Cloud Pak for Data 5.4.0.0
- IBM Cloud Pak for Data deployments hosting the DataStage service
- Environments integrating DataStage pipelines with enterprise data sources
Discovery Timeline
- 2026-09-23 - CVE CVE-2026-80379 published to NVD
- 2026-09-23 - Last updated in NVD database
Technical Details for CVE-2026-80379
Vulnerability Analysis
IBM DataStage orchestrates extract, transform, and load (ETL) workflows on Cloud Pak for Data. The vulnerability resides in a component that constructs an operating system command using attacker-influenced input. Because the input passes through without adequate sanitization, an authenticated user can inject shell metacharacters that the host interprets as additional commands.
Exploitation requires network access to the DataStage service and valid low-privilege credentials. No user interaction is needed. Once the injected command runs, the attacker gains code execution in the context of the DataStage service account, which typically holds access to job definitions, connection credentials, and data source endpoints.
The impact extends beyond the DataStage host. Cloud Pak for Data centralizes data pipelines, so a compromised DataStage instance can pivot into connected databases, object stores, and analytics services. Attackers can exfiltrate sensitive datasets, tamper with ETL logic, or move laterally within the Kubernetes-based platform.
Root Cause
The root cause is improper neutralization of special elements used in an OS command [CWE-78]. The affected code path concatenates user-controlled data directly into a shell invocation instead of using parameterized process execution or strict allow-list validation. Shell metacharacters such as ;, |, &, and backticks are treated as command separators rather than literal input.
Attack Vector
The attack vector is network-based and requires authentication. An attacker with a valid DataStage user account submits crafted input to the vulnerable endpoint or job configuration parameter. The malicious payload contains shell control characters followed by arbitrary commands. When DataStage assembles the OS command, the injected commands execute on the host running the service.
Refer to the IBM Support Page Documentation for the specific affected component and vendor-supplied technical details.
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Stop Exploit AttemptsDetection Methods for CVE-2026-80379
Indicators of Compromise
- Unexpected child processes spawned by DataStage service accounts, particularly shells such as sh, bash, or utilities like curl, wget, and nc.
- DataStage audit logs containing job parameters or API inputs with shell metacharacters (;, |, &&, backticks, $()).
- Outbound network connections from Cloud Pak for Data pods to unfamiliar external hosts.
- New or modified cron jobs, systemd units, or Kubernetes workloads in the DataStage namespace.
Detection Strategies
- Monitor process ancestry on DataStage nodes for shells or interpreters descending from DataStage engine processes.
- Inspect DataStage REST API traffic for parameter values containing command injection payloads.
- Correlate authenticated user sessions with anomalous host-level command execution timestamps.
Monitoring Recommendations
- Forward Cloud Pak for Data audit logs and Kubernetes API server logs to a centralized analytics platform for retention and correlation.
- Alert on privilege changes, service account token use, and outbound egress from DataStage pods.
- Baseline normal ETL job execution patterns and flag deviations in command invocation frequency or duration.
How to Mitigate CVE-2026-80379
Immediate Actions Required
- Apply the IBM-supplied fix referenced in the IBM Support Page Documentation as soon as it is available in your environment.
- Restrict DataStage access to trusted users and enforce least-privilege role assignments within Cloud Pak for Data.
- Rotate credentials for any service accounts, database connections, or API tokens accessible to the DataStage service.
Patch Information
IBM has published remediation guidance on its support portal. Administrators should consult the IBM Support Page Documentation for the fixed version, upgrade procedures, and any interim configuration changes required for Cloud Pak for Data 5.4.0.0 deployments.
Workarounds
- Limit network exposure of the DataStage service to internal management networks and administrative bastion hosts.
- Enforce multi-factor authentication on Cloud Pak for Data accounts to raise the barrier for authenticated exploitation.
- Apply Kubernetes network policies and pod security standards to restrict egress and process capabilities in the DataStage namespace until patching is complete.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
