CVE-2026-86857 Authorization Bypass in ServiceNow AI Platform
An authenticated user can bypass authorization controls to access unauthorized data within the ServiceNow AI Platform.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86857?
CVE-2026-86857 is a high-severity missing authorization vulnerability in ServiceNow AI Platform, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-86857?
How do I fix CVE-2026-86857?
No fix has been published for CVE-2026-86857 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-86857 being exploited?
There is no known exploitation of CVE-2026-86857 in the wild and no public exploit code.
Sources
Also known as GHSA-3g9f-q9vc-qffh.