Affects IBM DataStage on Cloud Pak for Data, a widely deployed enterprise data-integration product; authenticated remote code execution could disrupt data pipelines and systems.
CVE-2026-81539
Authenticated OS command injection in IBM DataStage on Cloud Pak for Data
Is CVE-2026-81539 being exploited?
Not confirmed. CVE-2026-81539 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.
How severe is CVE-2026-81539?
CVE-2026-81539 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-81539?
Not known from our data. No patch reference has been recorded for CVE-2026-81539, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-81539 affect?
CVE-2026-81539 affects IBM DataStage on Cloud Pak for Data 5.4.0.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-81539?
Apply vendor patch/mitigation immediately; restrict access and monitor logs
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated remote OS command injection allows arbitrary code execution as the application user; may lead to system and data compromise.
Immediate action required
- affected5.4.0.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.