Enable HTTP Only Cookie Flag

---
title: Enable HTTP Only Cookie Flag
description: Use the glide.cookies.http\_only property to enable the HTTPOnly attribute for sensitive cookies.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/platform-security/instance-security-hardening-settings/sc-http-only-cookie-flag.html
release: australia
product: Instance Security Hardening Settings
classification: instance-security-hardening-settings
topic_type: reference
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Session management, Hardening settings, Platform Security]
---

# Enable HTTP Only Cookie Flag

Use the **glide.cookies.http\_only** property to enable the HTTPOnly attribute for sensitive cookies.

If the **glide.cookies.http\_only** system property is not set to the recommended value of **true**, then the instance does not require the HTTPOnly attribute for sensitive cookies.

Ensure that the property **glide.cookies.http\_only** is set to **true**.

**Warning:** This is a safe harbor property, meaning the value can't be altered once it's changed. It is non-revertible.

## More information

<table id="table_ajc_b43_3kb"><thead><tr><th>

Attribute

</th><th>

Description

</th></tr></thead><tbody><tr><td>

Configuration name

</td><td>

**glide.cookies.http\_only**

</td></tr><tr><td>

Configuration type

</td><td>

System Properties \(/sys\_properties\_list.do\)

</td></tr><tr><td>

Data type

</td><td>

Boolean

</td></tr><tr><td>

Recommended value

</td><td>

true

</td></tr><tr><td>

Default value

</td><td>

true

</td></tr><tr><td>

Fallback value

</td><td>

true

</td></tr><tr><td>

Category

</td><td>

[Session management](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/platform-security/instance-security-hardening-settings/sc-session-management.md)

</td></tr><tr><td>

Security risk

</td><td>

-   Severity score: 8.0
-   CVSS rating: High
-   Security risk details: The HTTPOnly attribute is used to prevent attacks, such as cross-site scripting, because it doesn't allow access to the cookie using a client-side script, such as JavaScript.

</td></tr><tr><td>

Functional impact

</td><td>

None

</td></tr><tr><td>

Dependencies and prerequisites

</td><td>

None

</td></tr></tbody>
</table>To learn more about adding or creating a system property, see [Add a system property](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/platform-administration/t_AddAPropertyUsingSysPropsList.md).

**Parent Topic:**[Session management](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/platform-security/instance-security-hardening-settings/sc-session-management.md)