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CVE-2026-18886: Vulnerability in ServiceNow ServiceNow AI Platform

0
Critical
VulnerabilityCVE-2026-18886cvecve-2026-18886
Published: 08/27/2026 (08/27/2026, 19:00:01 UTC)
Source: CVE Database V5
Vendor/Project: ServiceNow
Product: ServiceNow AI Platform

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.

CVSS v4.0

Score 10.0critical

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
High
Subsq. Integrity
High
Subsq. Availability
High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Technical Details

Data Version
5.2
Assigner Short Name
SN
Date Reserved
2026-08-04T19:02:05.799Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null
Is Cloud Service
true

Threat ID: 6a909ceeacd9273b49b2cd38

Added to database: 08/27/2026, 20:24:14 UTC

Last updated: 08/28/2026, 02:29:58 UTC

Views: 7

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