CVE-2026-80412 Overview
CVE-2026-80412 is a command injection vulnerability in IBM DataStage on Cloud Pak for Data version 5.4.0.0. The flaw stems from improper escaping of connector property values during Orchestrate Shell (OSH) script generation. A remote authenticated attacker can inject malicious content into connector properties, which the platform then interprets as executable commands during OSH script generation. Successful exploitation leads to arbitrary code execution within the DataStage runtime context. The vulnerability is classified under [CWE-78] Improper Neutralization of Special Elements used in an OS Command.
Critical Impact
An authenticated attacker with low privileges can achieve arbitrary code execution on the DataStage server, compromising confidentiality, integrity, and availability of processed data.
Affected Products
- IBM DataStage on Cloud Pak for Data 5.4.0.0
- IBM Cloud Pak for Data (DataStage service component)
- Deployments using OSH script generation with connector stages
Discovery Timeline
- 2026-09-23 - CVE-2026-80412 published to NVD
- 2026-09-23 - Last updated in NVD database
Technical Details for CVE-2026-80412
Vulnerability Analysis
IBM DataStage generates Orchestrate Shell (OSH) scripts from user-configured connector stages during job compilation. The platform reads connector property values and embeds them into shell-executable OSH definitions. The vulnerability arises because these property values are not properly escaped before insertion into the generated script. An authenticated user with permissions to create or modify DataStage jobs can supply crafted property values containing shell metacharacters or command separators. When the OSH script executes, the injected content runs as an operating system command in the context of the DataStage engine process. This grants the attacker code execution on the underlying host, enabling data exfiltration, lateral movement, or persistence within the Cloud Pak for Data environment.
Root Cause
The root cause is missing input sanitization on connector property values passed into the OSH script generator. The generator treats attacker-controllable strings as trusted syntax rather than opaque data, violating the separation between code and input required to prevent OS command injection [CWE-78].
Attack Vector
The attack requires network access to the Cloud Pak for Data interface and authenticated access with permission to configure DataStage connector stages. No user interaction is required beyond the attacker's own actions. The attacker modifies a connector property to include a payload that breaks out of the intended string context. Once the job is compiled or executed, the crafted OSH script invokes the attacker's commands with the privileges of the DataStage runtime.
// Code example not available - see IBM Support advisory for technical details
// Reference: https://www.ibm.com/support/pages/node/7288649
Stop Remote Code Execution Before It Runs
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Stop Exploit AttemptsDetection Methods for CVE-2026-80412
Indicators of Compromise
- Unexpected child processes spawned from DataStage engine processes such as osh or dsapi_slave
- Connector property values containing shell metacharacters (;, |, `, $(, &&) in job design files or exports
- Outbound network connections originating from DataStage runtime hosts to unfamiliar destinations
- New or modified files in DataStage project directories written by the engine account
Detection Strategies
- Audit generated OSH scripts for unescaped metacharacters or command constructs that do not match the source connector configuration
- Correlate DataStage job execution events with process creation events on the underlying host to identify anomalous command execution
- Review Cloud Pak for Data audit logs for suspicious job modifications from low-privilege user accounts
Monitoring Recommendations
- Enable detailed process auditing on Cloud Pak for Data worker nodes hosting DataStage engines
- Forward DataStage engine logs and Kubernetes pod telemetry to a centralized analytics platform for behavioral analysis
- Alert on connector property changes made outside of approved change windows or by non-developer accounts
How to Mitigate CVE-2026-80412
Immediate Actions Required
- Apply the IBM security update referenced in the IBM Support advisory as soon as it is available for your deployment
- Inventory all IBM DataStage on Cloud Pak for Data 5.4.0.0 instances and prioritize internet-exposed or multi-tenant deployments
- Restrict DataStage job design and modification permissions to trusted developer accounts only
Patch Information
Refer to the IBM Support advisory for CVE-2026-80412 for the fixed version, upgrade procedures, and any interim fixes for IBM DataStage on Cloud Pak for Data 5.4.0.0. Apply the vendor-supplied patch through standard Cloud Pak for Data lifecycle management tooling.
Workarounds
- Enforce role-based access control on Cloud Pak for Data to remove connector configuration privileges from non-essential users
- Review and sanitize existing DataStage job definitions to remove any suspicious connector property values before recompilation
- Isolate DataStage engine pods at the network layer to limit outbound connectivity in case of compromise
# Configuration example not available - follow IBM's documented upgrade path
# See: https://www.ibm.com/support/pages/node/7288649
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
