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CVE-2026-86858NVD
Vulnerability Summary
ServiceNow has remediated an improper access control security issue that was identified in the ServiceNow AI Platform. This security issue could enable an unauthenticated user, in certain circumstances, to create, modify, or delete instance data beyond what was intended.
In August 2026, 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 malicious exploitation against ServiceNow instances. We recommend customers promptly apply appropriate updates or upgrade to a patched release if they have not already done so.
In August 2026, 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 malicious exploitation against ServiceNow instances. We recommend customers promptly apply appropriate updates or upgrade to a patched release if they have not already done so.
CVSS v4.0 Base Metrics — Score 8.7 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)None
Integrity (Vulnerable System)High
Availability (Vulnerable System)None
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
Affected & Patched Versions
- ServiceNow ServiceNow AI Platform < Yokohama Patch 13 Hot Fix 5a
- ServiceNow ServiceNow AI Platform < Zurich Patch 10 Hot Fix 3b
- ServiceNow ServiceNow AI Platform < Zurich Patch 10 Hot Fix 4a W32
- ServiceNow ServiceNow AI Platform < Zurich Patch 11 Hot Fix 3
- ServiceNow ServiceNow AI Platform < Australia Patch 2 Hot Fix 4b W32
- ServiceNow ServiceNow AI Platform < Australia Patch 4 Hot Fix 3
- ServiceNow ServiceNow AI Platform < Australia Patch 5
- ServiceNow ServiceNow AI Platform Yokohama Patch 13 Hot Fix 5a
- ServiceNow ServiceNow AI Platform Zurich Patch 10 Hot Fix 3b
- ServiceNow ServiceNow AI Platform Zurich Patch 10 Hot Fix 4a W32
- ServiceNow ServiceNow AI Platform Zurich Patch 11 Hot Fix 3
- ServiceNow ServiceNow AI Platform Australia Patch 2 Hot Fix 4b W32
- ServiceNow ServiceNow AI Platform Australia Patch 4 Hot Fix 3
- ServiceNow ServiceNow AI Platform Australia Patch 5