Improper certificate validation in IBM DataStage on Cloud Pak for Data
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-295.
Summary
IBM DataStage on Cloud Pak for Data from 5.4.0.0 does not properly validate TLS certificates in its client SDK, so the session adapter accepts forged server certificates (CWE-295). An attacker who can intercept the network connection, such as a man in the middle on the user's network path, can present a forged certificate and capture the IAM bearer token that the adapter attaches to requests. That token grants full platform-scope tenant API access, which allows reading and modifying the victim's DataStage projects, flows, assets and pipeline definitions.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
IBM DataStage on Cloud Pak for Data 5.4.0.0 can allow a man-in-the-middle attacker to present a forged TLS certificate, intercept the connection, and capture the IAM bearer Authorization header automatically attached by the session adapter. The captured token grants full platform-scope tenant API access, enabling the attacker to read and manipulate the victim's DataStage projects, flows, assets, and pipeline definitions. This is client-side SDK code running on the user's own machine, so exploitation requires an external network interceptor rather than a co-tenant in the shared cluster.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for IBM DataStage on Cloud Pak for Data.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-13 Threatist record created from CVE-2026-84418
- 2026-10-13 Alias added: GHSA-528j-3v52-48qw
References
More IBM Datastage On Cloud Pak For Data vulnerabilities
- TI-2026-56656 DataStage on Cloud Pak for Data has several vulnerabilities due to open source software CVSS 3.1CRITICAL 9.6
- TI-2026-13653 DataStage on Cloud Pak for Data has several vulnerabilities CVSS 3.1CRITICAL 9.9
- TI-2026-71450 Path traversal in IBM DataStage on Cloud Pak for Data lets attackers run code CVSS 3.1CRITICAL 9.9
- TI-2026-56256 DataStage on Cloud Pak for Data has several vulnerabilities CVSS 3.1HIGH 8.8
- TI-2026-13760 DataStage on Cloud Pak for Data has several vulnerabilities CVSS 3.1HIGH 8.8
- TI-2026-13758 DataStage on Cloud Pak for Data has several vulnerabilities due to open source software CVSS 3.1HIGH 8.8
Sources
- CVE-2026-84418 · CVE Program
- CVE-2026-84418 · NVD
- FIRST EPSS
- GHSA-528j-3v52-48qw · GitHub Advisory Database · CC BY 4.0
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