CVE-2026-82098 in DataStage on Cloud Pak for Data
Summary
by MITRE • 09/11/2026
IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to execute arbitrary commands due to improper neutralization of special elements used in an OS command.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 09/11/2026
The vulnerability identified within IBM DataStage, specifically as part of the Cloud Pak for Data platform version 5.4.0.0, represents a critical security flaw rooted in insufficient input validation and sanitization mechanisms. This issue is classified under Common Weakness Enumeration (CWE) ID CWE-78, which denotes Improper Neutralization of Special Elements used in an Operating System Command, commonly known as OS Command Injection. The core technical deficiency lies in the application's failure to adequately sanitize user-supplied input before it is passed to underlying operating system commands or shell interpreters. When a remote authenticated attacker interacts with specific components of the DataStage environment, they can inject malicious payloads into these inputs. Because the platform processes this data without rigorous filtering for special characters such as semicolons, pipes, ampersands, and backticks, the injected code is executed by the system with the privileges associated with the application process.
The operational impact of this vulnerability is severe due to its potential for arbitrary command execution on the host infrastructure. Since DataStage typically runs within containerized environments managed by Kubernetes in a Cloud Pak deployment, successful exploitation could allow an attacker not only to compromise the specific service instance but potentially escape the container boundary if privilege escalation vectors are present. This leads to unauthorized access to sensitive data processed through ETL pipelines, manipulation of job configurations, and potential lateral movement across the cluster. The requirement for authentication does not mitigate the risk entirely; it merely restricts the attack surface to internal users or those who have obtained valid credentials, which is a common scenario in enterprise environments where insider threats or compromised accounts are significant concerns.
From an offensive security perspective, this vulnerability aligns with MITRE ATT&CK technique T1059, specifically sub-technique 004 for Command and Scripting Interpreter abuse. Attackers would likely leverage standard command injection patterns to execute system-level commands, potentially downloading additional malware, exfiltrating data via DNS or HTTP requests, or establishing reverse shells. The lack of proper neutralization means that even simple string inputs can be transformed into executable code segments if the developer has not implemented strict allow-listing strategies for input parameters.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. IBM should release a patch that enforces strict parameterized command execution, ensuring that user inputs are treated strictly as data rather than executable code. For organizations unable to immediately apply patches, network segmentation is critical; restricting access to the DataStage interface to trusted IP ranges reduces exposure. Additionally, implementing Web Application Firewalls (WAF) with rules specifically tuned for OS injection patterns can provide a layer of defense by blocking requests containing suspicious special characters. Developers must also adopt secure coding practices that prioritize input validation using allow-lists rather than block-lists, ensuring that only expected character sets are accepted and all other inputs are rejected or strictly escaped before being passed to any system-level function.