STIGQter: STIG Summary: Apple iOS/iPadOS 26 Security Technical Implementation Guide Version: 1 Release: 3 Benchmark Date: 13 May 2026:

Apple iOS/iPadOS 26 must disable app installation from a website.

DISA Rule

SV-278825r1150884_rule

Vulnerability Number

V-278825

Group Title

PP-MDF-993300

Rule Version

AIOS-26-015000

Severity

CAT II

CCI(s)

CCI-000366 - Implement the security configuration settings.

Weight

Fix Recommendation

Install a configuration profile to disable app installation from a website.

Configuration Profile Key: allowWebDistributionAppInstallation

Check Contents

This check procedure is performed on both the device management tool and the iPhone and iPad.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS management tool, verify "Allow app installation from website" is unchecked.

On the iPhone and iPad device:
1. Open the Settings app.
2. Tap "General".
3. Tap "VPN & Device Management".
4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.
5. Tap "Restrictions".
6. Verify "Web app distribution not allowed" is listed.

If "Allow app installation from website" is not disabled in the management tool or on the Apple device "Web app distribution not allowed" is not listed, this is a finding.

Vulnerability Number

V-278825

Documentable

False

Rule Version

AIOS-26-015000

Severity Override Guidance

Check Content Reference

Target Key

5723