CVE-2026-18886
Critical · CVSS 10.0Published 2026-08-27
CVSS
10.0
Critical
EPSS
—
exploit probability
Active Exploit
No
not yet listed
What is CVE-2026-18886?
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.
CVSS Score Explained
CVSS 10.0 is Critical — the highest severity tier. Attackers can likely exploit this remotely with no authentication and cause full system compromise. Patch immediately.
EPSS Exploitation Probability
No EPSS score yet — model needs more data on this CVE.
References & Patches
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