Vulnerability · Published Sep 10, 2026 · Assigned by ibm

CVE-2026-81210DataStage on Cloud Pak for Data has several vulnerabilities due to open source software

High 7.7

In plain English

A high-severity authorization bypass via user-controlled key in DataStage on Cloud Pak for Data from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.1)7.7High

Exploit odds (30 days)0.3%top 72.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

IBM DataStage on Cloud Pak for Data 5.4.0.0 concatenates three caller-supplied strings into a String.format path on the shared /ds-storage RWX PVC and returns the file with no project ACL — pure IDOR plus traversal. Read is constrained to files named job.log/error.log, but DataStage job logs routinely carry connection strings, {dsnextenc} ciphertexts (decryptable via d2-f023), and customer-data row samples. This is the operator's tenant-to-tenant PVC-leakage threat verbatim; MEDIUM→HIGH via threat match.

Affected products (as reported)

Vendor	Product	Versions
IBM	DataStage on Cloud Pak for Data	5.4.0.0

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References

https://www.ibm.com/support/pages/node/7286562 vendor-advisory, patch