CVE-2026-18886

Summary

ServiceNow has remediated an improper access control vulnerability that was identified in the ServiceNow AI platform. This vulnerability could enable an unauthenticated user, in certain circumstances, to create or modify instance data beyond what was intended, resulting in privilege escalation. 

ServiceNow deployed a security update to hosted instances and ServiceNow provided the update to our partners and self-hosted customers. We are not currently aware of exploitation against ServiceNow instances. 

We recommend customers promptly apply appropriate updates or upgrade to a patched release if they have not already done so.

Affected Software

VendorProductVersion RangeStatus
ServiceNowServiceNow AI Platform0 < Xanadu Patch 11 Hot Fix 7aaffected
ServiceNowServiceNow AI Platform0 < Yokohama Patch 12 Hot Fix 3baffected
ServiceNowServiceNow AI Platform0 < Yokohama Patch 13 Hot Fix 4affected
ServiceNowServiceNow AI Platform0 < Zurich Patch 7b Hot Fix 3affected
ServiceNowServiceNow AI Platform0 < Zurich Patch 8 Hot Fix 5affected
ServiceNowServiceNow AI Platform0 < Zurich Patch 9 Hot Fix 6affected
ServiceNowServiceNow AI Platform0 < Zurich Patch 10 Hot Fix 2m (m-branch)affected
ServiceNowServiceNow AI Platform0 < Zurich Patch 10 Hot Fix 3 (standard)affected
ServiceNowServiceNow AI Platform0 < Zurich Patch 11affected
ServiceNowServiceNow AI Platform0 < Zurich Patch 12affected
ServiceNowServiceNow AI Platform0 < Australia Patch 2 Hot Fix 3affected
ServiceNowServiceNow AI Platform0 < Australia Patch 3 Hot Fix 2affected
ServiceNowServiceNow AI Platform0 < Australia Patch 3maffected
ServiceNowServiceNow AI Platform0 < Australia Patch 4affected
ServiceNowServiceNow AI Platform0 < Australia Patch 5unknown

Weaknesses

References