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CVE-2026-18886

Unauthenticated Privilege Escalation via System Configuration Image Upload Processor PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
ServiceNow / ServiceNow AI Platformaffected 0 before Xanadu Patch 11 Hot Fix 7a; affected 0 before Yokohama Patch 12 Hot Fix 3b; affected 0 before Yokohama Patch 13 Hot Fix 4; affected 0 before Zurich Patch 7b Hot Fix 3; affected 0 before Zurich Patch 8 Hot Fix 5; affected 0 before Zurich Patch 9 Hot Fix 6; affected 0 before Zurich Patch 10 Hot Fix 2m (m-branch); affected 0 before Zurich Patch 10 Hot Fix 3 (standard); affected 0 before Zurich Patch 11; affected 0 before Zurich Patch 12; affected 0 before Australia Patch 2 Hot Fix 3; affected 0 before Australia Patch 3 Hot Fix 2; affected 0 before Australia Patch 3m; affected 0 before Australia Patch 4; affected 0 before Australia Patch 5

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.