Alta Video — 1973: Unauthorized access to hidden object fields via API request filters

Release Date

27th of August 2025

Overview

It was reported that for some API endpoints it was possible to leverage the request filters to expose the values of hidden object fields. Some of these hidden object fields contained internal application secrets and confidential user information.

Affected products

• Alta Video:
• All Stable upgrade channel versions before 7.7.4.
• All Delayed upgrade channel versions before 7.6.7.
• All Beta upgrade channel versions before 7.7.3.
• Alta Video Cloud: before  21st August 2025.

Unaffected products

• Alta Video:
• All Stable upgrade channel versions after and including 7.7.4.
• All Delayed upgrade channel versions after and including 7.6.7.
• All Beta upgrade channel versions after and including 7.7.3.
• Avigilon Alta cloud-native Cameras: all versions.
• Alta Video Cloud: from 21st August 2025.

Resolution

This issue has been fixed in Alta Video Beta upgrade channel version 7.7.3, Delayed upgrade channel 7.6.8, and Stable upgrade channel version 7.7.4.

It is strongly recommended that all installations running an affected version are upgraded to the latest release as soon as possible. Releases are available to download through the Alta Video web app.

Vulnerability information

• CVSSv3 score: 6.5 (Medium)
• CVSSv3 vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Mitigations

There are no known mitigations for this issue.

Workarounds

There are no known workarounds for this issue.

Acknowledgements

Issue reported by an external third party.

Disclosure timeline

• 06/08/2025 Issue found
• 12/08/2025 Root cause established
• 13/08/2025 Fix identified
• 21/08/2025 Patched Alta Video Cloud released
• 19/08/2025 Patched Alta Video (Beta upgrade channel) released
• 26/08/2025 Patched Alta Video (Delayed upgrade channel) released
• 26/08/2025 Patched Alta Video (Stable upgrade channel) released
• 27/08/2025 Vulnerability publicly disclosed