Affects SAP (widely deployed enterprise software). Exploitable escalation to underlying Java server admin enables full system compromise across organizations.
CVE-2026-89108
SAP MII auth flaw lets MII admin escalate to Java server admin.
Is CVE-2026-89108 being exploited?
Not confirmed. CVE-2026-89108 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 0.30% probability of exploitation in the next 30 days.
How severe is CVE-2026-89108?
CVE-2026-89108 is rated Critical with a CVSS score of 9.1. 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-2026-89108?
Not known from our data. No patch reference has been recorded for CVE-2026-89108, 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-2026-89108 affect?
CVE-2026-89108 affects SAP Manufacturing Integration and Intelligence (MII), Underlying Java application servers hosting MII. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-89108?
Apply SAP security update ASAP; restrict MII admin access, audit and rotate privileged accounts.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
An MII administrator can provision elevated accounts on the underlying Java app server, gaining full administrative control and compromising confidentiality, integrity and availability.
Immediate action required
- affectedXMII 15.4
- affected15.5
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.