CVE-2026-16338 IBM DataStage - Unrestricted File Upload

IBM DataStage on Cloud Pak for Data 5.4.0.0 contains an unrestricted file write vulnerability caused by improper validation of file paths, letting remote authenticated attackers write arbitrary files.

CVSS base score 9.9 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.44% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Unrestricted File Upload
Impact
File System Write, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-73

Vendor fix

Update to the latest version of IBM DataStage on Cloud Pak for Data.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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