CVE-2026-18885

Unauthenticated Remote Code Execution in GraphQL Composite Data API

Published Aug 27, 2026 CVSS 4.0 · 10 Critical EPSS 7.2% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-20
CWE-287
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-20
CWE-287
CWE-94
Type Values Removed Values Added
First Time appeared Servicenow
Servicenow servicenow Ai Platform
Vendors & Products Servicenow
Servicenow servicenow Ai Platform
Type Values Removed Values Added
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.
Title Unauthenticated Remote Code Execution in GraphQL Composite Data API
References
Metrics cvssV4_0

{'score': 10, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
SN
Published
Updated
Aug 29, 2026, 3:56 AM
Reserved
Aug 4, 2026, 6:58 PM
Status
Awaiting Analysis
Published
Aug 27, 2026, 8:17 PM
Modified
Sep 1, 2026, 8:55 PM