Riskcovery

CVE-2026-18886

Unauthenticated Privilege Escalation via System Configuration Image Upload Processor

State
Published
Severity
10.0 Critical
Published
Aug 27, 2026
Updated
Sep 2, 2026
Reserved
Aug 4, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
4.010.0 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HSN

Weaknesses

Affected Products

ProductVersions
ServiceNow AI PlatformServiceNow
  • before Xanadu Patch 11 Hot Fix 7aAffected
  • before Yokohama Patch 12 Hot Fix 3bAffected
  • before Yokohama Patch 13 Hot Fix 4Affected
  • before Zurich Patch 7b Hot Fix 3Affected
  • before Zurich Patch 8 Hot Fix 5Affected
  • before Zurich Patch 9 Hot Fix 6Affected
  • before Zurich Patch 10 Hot Fix 2m (m-branch)Affected
  • before Zurich Patch 10 Hot Fix 3 (standard)Affected
  • before Zurich Patch 11Affected
  • before Zurich Patch 12Affected
  • before Australia Patch 2 Hot Fix 3Affected
  • before Australia Patch 3 Hot Fix 2Affected
  • before Australia Patch 3mAffected
  • before Australia Patch 4Affected
  • before Australia Patch 5Affected

References

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