CVE-2026-18885

Published Aug 27, 2026

Last updated 2 days ago

Overview

AI description

Automated description summarized from trusted sources.

CVE-2026-18885 is a code injection vulnerability found within the ServiceNow AI Platform. This flaw specifically affects the GraphQL Composite Data API, allowing an unauthenticated attacker to execute arbitrary code on the platform. Successful exploitation of this vulnerability could enable an attacker to gain access to, or modify, instance data beyond what is intended. ServiceNow has released security updates and hotfixes for affected versions across its Xanadu, Yokohama, Zurich, and Australia release families to remediate this issue.

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.
Source: psirt@servicenow.com
NVD status: Received

Risk scores

CVSS 4.0

Type: Secondary
Base score: 10
Impact score: -
Exploitability score: -
Vector string: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity: CRITICAL

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-94

Hype score is a measure of social media activity compared against trending CVEs from the past 12 months. Max score 100.

Hype score: 2

References