OCTOBER 9, 2026
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Case File

CVE-2026-86858

HIGH · CVSS 8.7 EPSS 0.27% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-24 · Last synced 2026-10-09

CyberRota Analysis

AI-Generated

An improper access control vulnerability in the ServiceNow AI Platform allows unauthenticated users to create, modify, or delete instance data under specific conditions. This poses a significant risk to data integrity and confidentiality, making it critical for all ServiceNow customers, especially those with sensitive data, to prioritize applying the latest security updates or upgrading to a patched release. While no known exploits have been reported, timely remediation is essential to mitigate potential threats.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-86858
Severity
HIGH
CVSS
8.7
EPSS
0.27%

Original NVD 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.