CVE-2026-84421
Received Received - Intake

Remote Code Execution in IBM DataStage on Cloud Pak for Data

Publication date: 2026-09-29

Last updated on: 2026-09-29

Assigner: IBM Corporation

Description
IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to execute arbitrary code due to improper validation of paths during archive extraction.

CVSS Scores

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Meta Information

Published
2026-09-29
Last Modified
2026-09-29
Generated
2026-09-29
AI Q&A
2026-09-29
EPSS Evaluated
N/A
NVD
CVE-2026-84421
EUVD
EUVD-2026-89197

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
ibm datastage From 5.4.7 (inc)
ibm datastage 5.4.0.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

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Executive Summary

IBM DataStage on Cloud Pak for Data 5.4.0.0 has a flaw where a remote authenticated attacker could execute arbitrary code. This happens because the system does not properly validate paths when extracting archives, allowing malicious input to bypass restrictions.

Impact Analysis

An attacker could gain control over the affected system, leading to unauthorized access, data theft, or system disruption. The high CVSS score (8.8) indicates significant risk as it allows full compromise of confidentiality, integrity, and availability.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR (data protection) and HIPAA (health data security) requirements. Non-compliance may result in legal penalties, reputational damage, and loss of trust.

Mitigation Strategies

Upgrade IBM DataStage on Cloud Pak for Data to version 5.4 patch 7 or later to mitigate the vulnerability.

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