CVE-2026-18886 Unauthenticated Privilege Escalation via System Configuration Image Upload Processor
Unauthenticated attackers can escalate privileges and modify instance data via the system configuration image upload processor in ServiceNow AI Platform.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18886?
CVE-2026-18886 is a critical vulnerability in ServiceNow AI Platform, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ServiceNow has remediated an improper access control vulnerability that was identified in the ServiceNow AI platform. This vulnerability could enable an unauthenticated user, in certain circumstances, to create or modify instance data beyond what was intended, resulting in privilege escalation.
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 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-284
Which versions are affected by CVE-2026-18886?
How do I fix CVE-2026-18886?
No fix has been published for CVE-2026-18886 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-18886 being exploited?
There is no known exploitation of CVE-2026-18886 in the wild and no public exploit code.
Sources
Also known as GHSA-f8mv-7pgv-hmrg.