Affects IBM DataStage on Cloud Pak for Data, a widely used enterprise ETL platform; critical data disclosure risk across enterprise deployments.
CVE-2026-81549
Auth'd header validation flaw in IBM DataStage can expose sensitive data.
Is CVE-2026-81549 being exploited?
Not confirmed. CVE-2026-81549 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-2026-81549?
CVE-2026-81549 is rated Critical with a CVSS score of 9.6. 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-2026-81549?
Not known from our data. No patch reference has been recorded for CVE-2026-81549, 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-2026-81549 affect?
CVE-2026-81549 affects IBM DataStage on Cloud Pak for Data 5.4.0.0, Cloud Pak for Data deployments running DataStage. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-81549?
Apply vendor update when available; restrict access and validate/strip X-Forwarded-Proto at proxies
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote authenticated attacker can abuse X-Forwarded-Proto validation to retrieve sensitive information (SSRF/info disclosure).
Patch when possible
- 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.