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. EPSS currently estimates a 0.45% probability of exploitation in the next 30 days.
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?
Yes. A fix has been recorded for CVE-2026-81539. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
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.
cisa ssvc
- exploitation
- none
- automatable
- no
- technical impact
- total
Assessed by CISA 24 Sept 2026 (SSVC 2.0.3).
timeline
- 24 Sept 2026Published
- 24 Sept 2026CISA SSVC assessment: exploitation none · same day later
- 24 Sept 2026CVE record last updated · same day later
- 26 Sept 2026Analysed by vulneraibility.com · 2 days later
- Patchibm.com /support/pages/node/7288649
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.