Unauthenticated critical privilege escalation in a widely used Microsoft Azure AI service; high-impact cloud service compromise could disrupt many organizations.
CVE-2026-85889
Unauthenticated privilege escalation in Azure AI Foundry enabling admin takeover
Is CVE-2026-85889 being exploited?
Not confirmed. CVE-2026-85889 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-2026-85889?
CVE-2026-85889 is rated Critical with a CVSS score of 10.0. 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-2026-85889?
Yes. A fix has been recorded for CVE-2026-85889. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-85889 affect?
CVE-2026-85889 affects Azure AI Foundry. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-85889?
Apply vendor update immediately; restrict network access to AI Foundry until patched
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated network access to a critical function allows elevation to administrative control, data access, lateral movement and service disruption.
Immediate action required