CVE-2026-6876

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Sandbox Escape in ServiceNow Now Platform

Publication date: 2026-08-27

Last updated on: 2026-09-01

Assigner: ServiceNow

Description

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-27

Last Modified

2026-09-01

Generated

2026-09-17

AI Q&A

2026-08-28

EPSS Evaluated

2026-09-15

NVD

CVE-2026-6876

Affected Vendors & Products

Vendor	Product	Version / Range
servicenow	now_platform	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-1284	The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.
CWE-94	The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CWE-693	The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

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.

Detection Guidance

Detection of this vulnerability requires checking if your ServiceNow Now Platform is running a patched version. ServiceNow has deployed security updates to hosted instances and provided patches to partners and self-hosted customers. Verify your instance version against the latest patched release.

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.

Compliance Impact

The vulnerability could allow unauthorized code execution, potentially leading to unauthorized access to sensitive data. This may impact compliance with GDPR (data protection) and HIPAA (healthcare data privacy) by increasing the risk of data breaches or unauthorized disclosures.

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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