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major vulnerability· requires attention

Affects IBM DataStage on Cloud Pak for Data, a widely used enterprise data platform; namespace-wide secret exposure can enable broad credential theft and lateral compromise.

Cloud

CVE-2026-80423

8.8
High
EPSS 0.32%Patch available

Authenticated access exposes namespace-wide secrets via file mounts.

exploited
No known exploitation not in CISA KEV as of our last sync
fix
Patch available see the advisory in the references
likelihood
EPSS 0.32%top 76% of scored CVEs
Published 23 Sept 2026Analysed here 24 Sept 2026CVSS scored by the publisher (CNA)
common questions

Is CVE-2026-80423 being exploited?

Not confirmed. CVE-2026-80423 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 0.32% probability of exploitation in the next 30 days.

How severe is CVE-2026-80423?

CVE-2026-80423 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-2026-80423?

Yes. A fix has been recorded for CVE-2026-80423. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-80423 affect?

CVE-2026-80423 affects IBM DataStage on Cloud Pak for Data 5.4.0.0, IBM Cloud Pak for Data deployments using DataStage file mounts. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-80423?

Follow IBM advisory; restrict file-mount access, rotate any exposed secrets, and apply vendor patch when available.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
IBM DataStage on Cloud Pak for Data 5.4.0.0IBM Cloud Pak for Data deployments using DataStage file mounts
impact

Remote authenticated attacker can read namespace secrets (tokens/credentials) via mounts, enabling credential theft, lateral movement, and data exfiltration.

action required

Immediate action required

affected versions
IBM DataStage on Cloud Pak for Data
  • 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

  1. 23 Sept 2026Published
  2. 24 Sept 2026Analysed by vulneraibility.com · same day later
  3. 24 Sept 2026CISA SSVC assessment: exploitation none · same day later
  4. 24 Sept 2026CVE record last updated · same day later
how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
1 reference in the CVE record: 1 patch
  • 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.
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