# CVE-2026-86858: ServiceNow AI Platform improper access control

Source: https://junglewise.ai/threats/cve-2026-86858-servicenow-has-remediated-an-improper-access-control-security  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-24. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-86858 · Severity: info · Published 2026-09-24

ServiceNow's AI Platform had an access control flaw that could allow unauthenticated users to create, modify, or delete data on affected instances without proper authorization. This could lead to unauthorized data manipulation and potential data loss or exposure. ServiceNow patched the issue in August 2026 and no active exploitation has been reported.

Technologies: [ServiceNow AI Platform](https://junglewise.ai/threats/technologies/servicenow-ai-platform). Vendors: [ServiceNow](https://junglewise.ai/threats/vendors/servicenow).

## Quick answers

**Is CVE-2026-86858 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-86858 being exploited in the wild.

**How severe is CVE-2026-86858?** Informational severity, published 24 September 2026.

**Which products and versions are affected?** ServiceNow AI Platform.

**Is there a fix for CVE-2026-86858?** A patch was published on 2026-08: Security update deployed to hosted instances Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-86858 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-86858?** Check whether you run ServiceNow AI Platform. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An improper access control vulnerability in ServiceNow AI Platform allows unauthenticated attackers to perform unauthorized CRUD operations on instance data. The vulnerability requires no authentication or user interaction, and affects the access control logic governing data modification permissions. A patch was deployed to hosted instances in August 2026.

## Affected products

- ServiceNow AI Platform

## Timeline

- 2026-09-24: disclosed: CVE-2026-86858 publicly disclosed
- 2026-08: patched: Security update deployed to hosted instances

## References

- [https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB3159623](https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB3159623)

## Related threats

- [ServiceNow AI Platform information disclosure in credential persistence](https://junglewise.ai/threats/cve-2026-103094-servicenow-has-remediated-an-information-disclosure)
- [ServiceNow AI Platform sandbox escape](https://junglewise.ai/threats/cve-2026-103093-servicenow-has-remediated-a-sandbox-escape-security-issue-that)
- [ServiceNow AI Platform missing authorization in instance data access](https://junglewise.ai/threats/cve-2026-86860-servicenow-has-remediated-a-missing-authorization-vulnerability)
- [ServiceNow AI Platform authorization bypass](https://junglewise.ai/threats/cve-2026-86859-servicenow-has-remediated-an-authorization-bypass-security-issue)
- [ServiceNow AI Platform authorization bypass](https://junglewise.ai/threats/cve-2026-86857-servicenow-has-remediated-an-authorization-bypass-security-issue)