Sandbox Escape in ServiceNow Now Platform

Publication date: 2026-08-27

Last updated on: 2026-08-27

Assigner: ServiceNow

Description

ServiceNow has remediated a sandbox escape security issue that was identified in the Now Platform. This security issue could allow an unauthenticated user to execute arbitrary code within the Now Platform, potentially leading to more access to the Now 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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-27

Last Modified

2026-08-27

Generated

2026-08-28

AI Q&A

2026-08-28

EPSS Evaluated

N/A

NVD

CVE-2026-6876

Affected Vendors & Products

Vendor	Product	Version / Range
servicenow	now_platform	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is a sandbox escape issue in ServiceNow's Now Platform. It allows an unauthenticated user to execute arbitrary code within the platform, potentially gaining more access than intended.

Impact Analysis

An attacker could exploit this to run unauthorized code, leading to unauthorized access, data breaches, or further compromise of the Now Platform. ServiceNow has patched hosted instances and provided updates to partners and self-hosted customers.

Mitigation Strategies

Apply the security update provided by ServiceNow to hosted instances or upgrade to a patched release if you are a self-hosted customer. Ensure the update is applied promptly to prevent unauthorized code execution.

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