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Vulnerability · Published Aug 27, 2026 · Assigned by SN

CVE-2026-18885Unauthenticated Remote Code Execution in GraphQL Composite Data API

Critical 10.0

In plain English

A critical-severity code injection in ServiceNow AI Platform from ServiceNow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 7.2% (higher than 94% of all known vulnerabilities).

Severity (CVSS 4.0)10.0Critical
Exploit odds (30 days)7.2%top 5.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

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.

Affected products (as reported)

VendorProductVersions
ServiceNow ServiceNow AI Platform 0 – before Xanadu Patch 11 Hot Fix 7a0 – before Yokohama Patch 12 Hot Fix 3b0 – before Yokohama Patch 13 Hot Fix 40 – before Zurich Patch 7b Hot Fix 30 – before Zurich Patch 8 Hot Fix 50 – before Zurich Patch 9 Hot Fix 60 – before Zurich Patch 10 Hot Fix 2m (m-branch)0 – before Zurich Patch 10 Hot Fix 3 (standard)

Weakness: CWE-94 · 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

References