CVE-2026-86858
Unauthenticated Privilege Escalation via GraphQL in ServiceNow AI Platform
No known exploitation. EPSS puts it in the 18th percentile. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- ServiceNow AI PlatformAffected: < Yokohama Patch 13 Hot Fix 5aUpgrade to: Yokohama Patch 13 Hot Fix 5aAffected: < Zurich Patch 10 Hot Fix 3bUpgrade to: Zurich Patch 10 Hot Fix 3bAffected: < Zurich Patch 10 Hot Fix 4a W32Upgrade to: Zurich Patch 10 Hot Fix 4a W32Affected: < Zurich Patch 11 Hot Fix 3Upgrade to: Zurich Patch 11 Hot Fix 3 + 3 more branchesStated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
ServiceNow has remediated an improper access control security issue that was identified in the ServiceNow AI Platform. This security issue could enable an unauthenticated user, in certain circumstances, to create, modify, or delete instance data beyond what was intended. In August 2026, 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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.3% chance of exploitation activity in the next 30 days, which ranks it in the 18th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
4 events over 0 days, from the signal feeds we watch.
- Publishedweakness classified, record updated, record updated
Affected products
Technical detail
Weaknesses
Sources
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