Description
ServiceNow has remediated an authorization bypass security issue that was identified in the ServiceNow AI Platform. This security issue, if exploited, could enable an authenticated user to access data within the ServiceNow AI Platform that the user otherwise would not be entitled to access, potentially enabling further unintended access.





ServiceNow deployed an 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.
Published: 2026-09-24
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized Data Access
Action: Immediate Patch
AI Analysis

Impact

The vulnerability involves an authorization bypass that permits an authenticated user to view data in the ServiceNow AI Platform beyond their granted permissions. By exploiting this flaw, the attacker can obtain sensitive information that should be restricted, potentially facilitating further exploitation such as privilege escalation within the system.

Affected Systems

All instances of the ServiceNow AI Platform, including both hosted and self-hosted deployments, that have not yet received the update referenced in KB3159623. No specific version identifiers are provided, so any unpatched installation may be affected.

Risk and Exploitability

The CVSS score of 8.4 denotes high severity, indicating significant potential for data exposure. The EPSS score of < 1% indicates a very low exploitation probability, although the risk of misuse remains non‑zero. The flaw is not listed in the CISA KEV catalog. The attack vector is inferred to require legitimate user credentials, implying that an authenticated attacker—either a compromised legitimate user or an insider—may abuse the bug. Consequently, the risk is substantial for confidentiality and could serve as a stepping stone to more extensive compromise if access controls are further violated. The potential for further privilege escalation is inferred from the nature of the data access breach, but no specific escalation path is disclosed in the description.

Generated by OpenCVE AI on September 26, 2026 at 02:38 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the ServiceNow update for the AI Platform as documented in KB3159623
  • For self-hosted customers, download and install the latest patch release to the AI Platform
  • Review and tighten access control policies to ensure users have only the permissions required for their roles

Generated by OpenCVE AI on September 26, 2026 at 02:38 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Sat, 26 Sep 2026 01:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Fri, 25 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-862

Fri, 25 Sep 2026 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Servicenow
Servicenow servicenow Ai Platform
Vendors & Products Servicenow
Servicenow servicenow Ai Platform

Fri, 25 Sep 2026 06:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Thu, 24 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 24 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
Description ServiceNow has remediated an authorization bypass security issue that was identified in the ServiceNow AI Platform. This security issue, if exploited, could enable an authenticated user to access data within the ServiceNow AI Platform that the user otherwise would not be entitled to access, potentially enabling further unintended access. ServiceNow deployed an 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 Authorization Bypass in ServiceNow AI Platform
References
Metrics cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N'}


Subscriptions

Servicenow Servicenow Ai Platform
cve-icon MITRE

Status: PUBLISHED

Assigner: SN

Published:

Updated: 2026-09-25T12:30:11.668Z

Reserved: 2026-09-08T15:40:14.281Z

Link: CVE-2026-86857

cve-icon Vulnrichment

Updated: 2026-09-24T18:46:05.292Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-24T19:17:18.350

Modified: 2026-09-25T13:17:16.663

Link: CVE-2026-86857

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-26T02:45:02Z

Weaknesses