CVE-2026-86858: Vulnerability in ServiceNow ServiceNow AI Platform
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.
AI Analysis
Technical Summary
This vulnerability in the ServiceNow AI Platform involves improper access control that could enable unauthenticated users to manipulate instance data in unauthorized ways. The issue was remediated by ServiceNow through a security update deployed to hosted instances and distributed to partners and self-hosted customers in August 2026. The CVSS 4.0 score is 8.7, indicating high severity, with attack vector network, no privileges or user interaction required, and high impact on integrity. No active exploitation is currently known.
Potential Impact
An unauthenticated attacker could create, modify, or delete data within a ServiceNow AI Platform instance beyond what is intended, potentially compromising data integrity. This could affect the reliability and trustworthiness of instance data. No reports of active exploitation have been identified.
Mitigation Recommendations
ServiceNow has released a security update that addresses this vulnerability and deployed it to hosted instances. Partners and self-hosted customers have been provided with the update. Customers should promptly apply the provided updates or upgrade to a patched release to mitigate the risk. Since this is a cloud service, the vendor manages remediation for hosted instances.
CVE-2026-86858: Vulnerability in ServiceNow ServiceNow AI Platform
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.
CVSS v4.0
Score 8.7high
Affected software
ServiceNow
ServiceNow AI Platform
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in the ServiceNow AI Platform involves improper access control that could enable unauthenticated users to manipulate instance data in unauthorized ways. The issue was remediated by ServiceNow through a security update deployed to hosted instances and distributed to partners and self-hosted customers in August 2026. The CVSS 4.0 score is 8.7, indicating high severity, with attack vector network, no privileges or user interaction required, and high impact on integrity. No active exploitation is currently known.
Potential Impact
An unauthenticated attacker could create, modify, or delete data within a ServiceNow AI Platform instance beyond what is intended, potentially compromising data integrity. This could affect the reliability and trustworthiness of instance data. No reports of active exploitation have been identified.
Mitigation Recommendations
ServiceNow has released a security update that addresses this vulnerability and deployed it to hosted instances. Partners and self-hosted customers have been provided with the update. Customers should promptly apply the provided updates or upgrade to a patched release to mitigate the risk. Since this is a cloud service, the vendor manages remediation for hosted instances.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- SN
- Date Reserved
- 2026-09-08T15:43:12.461Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Is Cloud Service
- true
Threat ID: 6ab573f2f7a7c54106b81aad
Added to database: 09/24/2026, 19:03:14 UTC
Last enriched: 09/24/2026, 19:17:39 UTC
Last updated: 09/25/2026, 01:55:59 UTC
Views: 14
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