Alta Video — 1918: Prototype pollution in Alta Video's network connection stats functionality

Release Date

14th of August 2025.

Overview

A prototype pollution vulnerability was discovered in Alta Video. In the worst case, this could lead to a cross site scripting attack. However, the risk of such an attack is lower due to a generic mitigation already in place against exploitation of prototype pollution.

Affected Products

• Alta Video:
  • All Stable upgrade channel versions before 7.6.5.
  • All Beta upgrade channel versions before 7.6.4.

Unaffected Products

• Alta Video:

  • All Stable upgrade channel versions after and including 7.6.5.
  • All Beta upgrade channel versions after and including 7.6.4.

• Avigilon Cloud-Native Cameras: all versions.

• Alta Video Cloud: all versions.

Resolution

This issue has been fixed in Alta Video Beta upgrade channel version 7.6.4 and Stable upgrade channel version 7.6.5.

It is highly 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 User Interface.

Vulnerability Information

• CVSSv3 score: 7.5 (High)
• CVSSv3 vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Mitigations

There are no known mitigations for this issue.

Work arounds

There are no known work arounds for this issue.

Acknowledgements

Issue discovered internally by Alta Video.

Disclosure Timeline

• 24/04/2025 Issue found
• 12/05/2025 Root cause established
• 13/05/2025 Fix identified
• 03/07/2025 Patched Alta Video (Beta upgrade channel) released
• 08/07/2025 Patched Alta Video (Stable upgrade channel) released
• 14/08/2025 Vulnerability publicly disclosed