CVE-2026-18885 Unauthenticated Remote Code Execution in GraphQL Composite Data API
Unauthenticated attackers can execute arbitrary code and access or modify instance data in the 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-2026-18885?
CVE-2026-18885 is a critical code injection 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 a code injection vulnerability that was identified in the ServiceNow AI platform. This vulnerability could enable an unauthenticated user, in certain circumstances, to execute arbitrary code in the ServiceNow platform and gain access to, or modify, instance data beyond what was intended.
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.
Weakness: CWE-94
Which versions are affected by CVE-2026-18885?
How do I fix CVE-2026-18885?
No fix has been published for CVE-2026-18885 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-18885 being exploited?
There is no known exploitation of CVE-2026-18885 in the wild and no public exploit code.
Sources
Also known as GHSA-pc3p-j9w8-jrpg.