ServiceNow has remediated an improper access control security issue that was identified in the ServiceNow AI Platform. This security issue could enable an unauthenticated user, in certain circumstances, to create, modify, or delete instance data beyond what was intended.





In August 2026, 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 malicious exploitation against ServiceNow instances. We recommend customers promptly apply appropriate updates or upgrade to a patched release if they have not already done so.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
ServiceNow ServiceNow AI Platform unaffected
Version Status Constraints
0 affected < Yokohama Patch 13 Hot Fix 5a
0 affected < Zurich Patch 10 Hot Fix 3b
0 affected < Zurich Patch 10 Hot Fix 4a W32
0 affected < Zurich Patch 11 Hot Fix 3
0 affected < Australia Patch 2 Hot Fix 4b W32
0 affected < Australia Patch 4 Hot Fix 3
0 affected < Australia Patch 5

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB3159623 cve-icon cve-icon
History

Thu, 24 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 24 Sep 2026 19:00:00 +0000

Type Values Removed Values Added
Description ServiceNow has remediated an improper access control security issue that was identified in the ServiceNow AI Platform. This security issue could enable an unauthenticated user, in certain circumstances, to create, modify, or delete instance data beyond what was intended. In August 2026, 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 malicious exploitation against ServiceNow instances. We recommend customers promptly apply appropriate updates or upgrade to a patched release if they have not already done so.
Title Unauthenticated Privilege Escalation via GraphQL in ServiceNow AI Platform
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: SN

Published:

Updated: 2026-09-24T19:18:52.579Z

Reserved: 2026-09-08T15:43:12.461Z

Link: CVE-2026-86858

cve-icon Vulnrichment

Updated: 2026-09-24T19:14:29.211Z

cve-icon NVD

Status : Received

Published: 2026-09-24T19:17:18.483

Modified: 2026-09-24T20:17:33.253

Link: CVE-2026-86858

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses