CVE-2026-6876 — Sandbox Escape in ServiceNow AI Platform
ServiceNow has remediated a sandbox escape security issue that was identified in the ServiceNow AI Platform. This security issue could allow an unauthenticated user to execute arbitrary code within the ServiceNow AI Platform, potentially leading to more access to the ServiceNow AI Platform than 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.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- Technical severity (critical)+10
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (ServiceNow ServiceNow AI Platform).
- The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
- No fix documented in the sources: reduce exposure and monitor the vendor advisory.
- Search available logs for exploit probes matching the vulnerability class (injection), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| ServiceNow | ServiceNow AI Platform |
< Xanadu Patch 11 Hot Fix 7a< Yokohama Patch 12 Hot Fix 3b< Yokohama Patch 13 Hot Fix 4< Zurich Patch 7b Hot Fix 3< Zurich Patch 8 Hot Fix 5< Zurich Patch 9 Hot Fix 6< Zurich Patch 10 Hot Fix 2m (m-branch)< Zurich Patch 10 Hot Fix 3 (standard) and 7 more< Zurich Patch 11< Zurich Patch 12< Australia Patch 2 Hot Fix 3< Australia Patch 3 Hot Fix 2< Australia Patch 3m< Australia Patch 4< Australia Patch 5 |
Vulnerable | CVE Program (cve.org) e CISA ADP |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 10.0 | CVSS 4.0 | Critical | — | — | psirt@servicenow.com via NIST National Vulnerability Database |
| 10.0 | CVSS 4.0 | Critical | — | — | SN via CVE Program (cve.org) e CISA ADP |
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 (score shown at the top: psirt@servicenow.com) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
- Look for parameters with command/query metacharacters and unexpected child processes of the service.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · servicenow/servicenow ai platform
- SSVC assessment updated
- Record published
- CVSS changed · 10.0
- Source status changed · → Awaiting Analysis
- Record created in this database
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 15, 2026 – Oct 15, 2026
References
1 on the record
Elsewhere on this site
Related CVEs (same products)
- Critical CVE-2026-74820 Unauthenticated SQL Injection via Dynamic Schema ORDER BY Clause Aug 27, 2026
- Critical CVE-2026-18886 Unauthenticated Privilege Escalation via System Configuration Image Upload Processor Aug 27, 2026
- Critical CVE-2026-18885 Unauthenticated Remote Code Execution in GraphQL Composite Data API Aug 27, 2026
- Critical CVE-2026-6875 Sandbox Escape in ServiceNow AI Platform Jul 13, 2026
- Critical CVE-2026-0542 Remote Code Execution in ServiceNow AI Platform Feb 25, 2026
- Medium CVE-2025-11449 Reflected Cross Site Scripting in ServiceNow AI Platform Oct 9, 2025
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No FIRST EPSS score.
- No fixed version, patch or mitigation documented.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2026-6876 is "Sandbox Escape in ServiceNow AI Platform", rated Critical. It affects ServiceNow AI Platform (ServiceNow); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 10.0 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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