IBM DataStage on Cloud Pak for Data Has Critical Path Traversal Flaw
A critical severity vulnerability in IBM DataStage allows remote authenticated attackers to trigger denial of service via path traversal.
Key points
- CVE-2026-82101 affects IBM DataStage on Cloud Pak for Data version 5.4.0.0.
- The flaw enables remote authenticated attackers to cause denial of service.
- The National Vulnerability Database rates the issue as critical with a CVSS score of 9.6.
IBM DataStage running on Cloud Pak for Data contains a critical path traversal vulnerability that allows remote authenticated attackers to cause a denial of service. The National Vulnerability Database records this issue as CVE-2026-82101 and assigns it a CVSS score of 9.6.
The vulnerability exists specifically in version 5.4.0.0 of the software. According to the NVD record, the weakness is classified under CWE-22, which covers path traversal errors. This classification indicates that the application fails to properly neutralize user-controllable input before using it to access a file system.
Technical Context and Severity
The National Vulnerability Database describes the flaw as allowing a remote authenticated attacker to cause a denial of service. This means an attacker must first have valid credentials to access the DataStage environment. Once authenticated, the attacker can exploit the path traversal weakness to disrupt service availability.
The CVSS score of 9.6 places this vulnerability in the critical severity range. The source material rates the severity as critical. Security teams should note this rating when prioritizing remediation efforts for the affected version.
Affected Software and Users
Only IBM DataStage on Cloud Pak for Data version 5.4.0.0 is listed as affected by CVE-2026-82101. Organizations running this specific version of the data integration tool are at risk. Users of other versions or different IBM data products are not mentioned in the current advisory.
The requirement for authentication limits the immediate attack surface. However, any account with access to DataStage could potentially be used to exploit this flaw. This includes legitimate user accounts that may have been compromised or shared improperly.
What should you do?
Security professionals should verify if their environment runs version 5.4.0.0 of IBM DataStage on Cloud Pak for Data. If this version is in use, teams should monitor for official patches or workarounds from IBM. Until a fix is confirmed, limiting access to the DataStage interface reduces the risk of exploitation.
What to do and how to stay safe: IBM
- Audit your environment to confirm if IBM DataStage on Cloud Pak for Data version 5.4.0.0 is deployed.
- Review access logs for authenticated users who may be attempting unusual file access patterns.
- Restrict network access to DataStage consoles to trusted IP addresses only.
- Monitor vendor communications for updates regarding CVE-2026-82101 and apply patches immediately when available.
Step-by-step guide: Risk Based Vulnerability Management: Prioritize Fixes by Actual Threat
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-82101?
It is a critical path traversal vulnerability in IBM DataStage on Cloud Pak for Data 5.4.0.0 that allows remote authenticated attackers to cause denial of service.
Is an unauthenticated attacker able to exploit this flaw?
No, the National Vulnerability Database states that the attacker must be remote and authenticated to exploit this vulnerability.
What is the CVSS score for this vulnerability?
The CVSS score is 9.6, which is rated as critical severity by the National Vulnerability Database.
