CVE-2026-82103 Overview
CVE-2026-82103 is an information disclosure vulnerability affecting IBM DataStage on Cloud Pak for Data version 5.4.0.0. A remote authenticated attacker can retrieve sensitive information due to improper exposure of data to an unauthorized actor [CWE-200]. The flaw requires valid credentials but no user interaction, and it affects confidentiality without impacting integrity or availability. IBM published a support advisory describing the issue and the fix path for affected deployments.
Critical Impact
Authenticated users on affected Cloud Pak for Data environments can access sensitive information outside their intended authorization scope, enabling data reconnaissance against the DataStage platform.
Affected Products
- IBM DataStage on Cloud Pak for Data 5.4.0.0
- IBM Cloud Pak for Data (deployments running the affected DataStage component)
- Environments using the vulnerable ibm:datastage_on_cloud_pak_for_data component
Discovery Timeline
- 2026-10-12 - CVE-2026-82103 published to the National Vulnerability Database (NVD)
- 2026-10-14 - Last updated in NVD database
Technical Details for CVE-2026-82103
Vulnerability Analysis
The vulnerability is classified under [CWE-200: Exposure of Sensitive Information to an Unauthorized Actor]. IBM DataStage on Cloud Pak for Data 5.4.0.0 returns sensitive data to authenticated requests that should not have visibility into that data. The scope is unchanged, meaning the exposure stays within the vulnerable component rather than crossing a security boundary into other services.
Exploitation requires network reachability to the DataStage service and valid low-privilege credentials. No user interaction is needed. The confidentiality impact is high because the exposed data may include job metadata, configuration content, or operational details that aid further intrusion.
The EPSS score is 0.307% at the 22.009 percentile as of 2026-10-16, indicating low observed exploit activity. No public proof-of-concept exploits are listed, and the issue is not present on the CISA Known Exploited Vulnerabilities catalog.
Root Cause
The root cause is improper enforcement of authorization checks around sensitive responses in the DataStage service running on Cloud Pak for Data. The service returns information that should be restricted to higher-privileged roles or to the owning tenant.
Attack Vector
An authenticated attacker issues requests to the DataStage interface or API endpoints exposed by Cloud Pak for Data. The service returns sensitive content that the attacker's role should not see. Because the attack vector is network-based and complexity is low, the attack can be scripted and repeated across endpoints for data harvesting.
No verified exploit code is published. See the IBM Support Page for technical remediation details.
Detection Methods for CVE-2026-82103
Indicators of Compromise
- Repeated authenticated requests from a single user or token to DataStage API endpoints that return sensitive metadata
- Access patterns where low-privilege accounts enumerate project, job, or connection resources outside their assigned scope
- Unusual response sizes on DataStage endpoints indicating bulk data retrieval
Detection Strategies
- Review Cloud Pak for Data audit logs for authenticated API calls that return sensitive DataStage objects to users without the required role
- Correlate authentication events with resource access to identify accounts accessing data outside their project membership
- Baseline normal DataStage API usage per user and alert on deviations in volume or endpoint diversity
Monitoring Recommendations
- Enable verbose audit logging on Cloud Pak for Data and forward logs to a centralized SIEM for retention and query
- Monitor the /datastage/ API paths for anomalous access patterns tied to specific service accounts or tokens
- Alert on new or rarely used accounts generating high request volumes against DataStage endpoints
How to Mitigate CVE-2026-82103
Immediate Actions Required
- Apply the fix referenced on the IBM Support Page for DataStage on Cloud Pak for Data 5.4.0.0
- Audit DataStage user roles and remove unnecessary access from low-privilege accounts
- Rotate credentials and API tokens for accounts that may have accessed sensitive data during the exposure window
Patch Information
IBM has issued remediation guidance on its support portal. Administrators should consult the IBM Support Page for the specific interim fix or upgrade path for DataStage on Cloud Pak for Data 5.4.0.0.
Workarounds
- Restrict network access to the Cloud Pak for Data console and DataStage APIs to trusted administrative networks
- Enforce least-privilege role assignments and remove shared service accounts from DataStage projects
- Enable multi-factor authentication for all Cloud Pak for Data users to reduce the risk of credential-based access
# Configuration example
# Review Cloud Pak for Data user role bindings for DataStage
oc get rolebindings -n cpd | grep -i datastage
# Remove excessive permissions from a user
oc adm policy remove-role-from-user datastage-admin <user> -n cpd
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
