---
id: CVE-2026-18886
title: >-
  ServiceNow has remediated an improper access control vulnerability that was
  identified in the ServiceNow AI platform
summary: >-
  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 be…
severity: none
cwe:
  - CWE-284
published: '2026-08-27'
updated: '2026-08-29'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18886'
references:
  - url: >-
      https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB3152242
    label: psirt@servicenow.com
tags:
  - nvd
epss: 0.05041
epssPercentile: 0.91977
ingestedAt: '2026-08-29T21:42:35.363Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.