Alta Video — 2121: Vulnerabilities in cmd/cgo and crypto/tls in Go before 1.25.7 and 1.24.13

Release Date

7th of April 2026.

Overview

A vulnerability was found in the cmd/cgo Go package, related to the parsing of comments, which allowed for code smuggling into the resulting cgo binary. Specifically, a discrepancy existed between how Go and C/C++ comments were parsed. Additionally, an issue existed in crypto/tls Go package with unexpected session resumption when using Config.GetConfigForClient, where connections could bypass modified authentication requirements.

Affected Products

• Alta Video:
  • All Stable upgrade channel versions before 8.1.5.
  • All Beta upgrade channel versions before 8.1.2.
• Avigilon Cloud-Native Cameras:
  • All Stable upgrade Channel versions before 8.1.5.
  • All Beta upgrade channel versions before 8.1.2.
• Alta Video Cloud: before  20th February 2026.

Unaffected Products

• Alta Video:

  • All Stable upgrade channel versions after and including 8.1.5.
  • All Beta upgrade channel versions after and including 8.1.2.

• Avigilon Cloud-Native Cameras:

  • All Stable upgrade channel versions after and including 8.1.5.
  • All Beta upgrade channel versions after and including 8.1.2.

• Alta Video Cloud: from  20th February 2026

Resolution

This issue has been fixed in Alta Video Beta upgrade channel version 8.1.2 and Stable upgrade channel version 8.1.5.

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.

A fix was deployed to the Alta Video Cloud on  20th February 2026. Alta Video Cloud customers do not need to take any additional action.

This issue has been fixed in Avigilon Cloud-Native Cameras Beta upgrade channel version 8.1.2 and Stable upgrade channel version 8.1.5.

It is highly recommended that all Avigilon Cloud-Native camera installations running an affected version upgrade to the latest release as soon as possible. Releases are available to download through the Alta Video User Interface for Avigilon Cloud-Native cameras and the Avigilon Cloud-Native Camera Interface for unmanaged cameras.

Vulnerability Information

• CVE: CVE-2025-61732 and CVE-2025-68121.
• CVSS score: 8.6 (High)
• CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/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 reported by project maintainers.

Disclosure Timeline

• 04/02/2026 Issue found
• 04/02/2026 Root cause established
• 04/02/2026 Fix identified
• 20/02/2026 Patched Alta Video Cloud released
• 18/02/2026 Patched Alta Video (Beta upgrade channel) released
• 19/03/2026 Patched Alta Video (Stable upgrade channel) released
• 18/02/2026 Patched Avigilon Cloud-Native Cameras (Beta upgrade channel) released
• 19/03/2026 Patched Avigilon Cloud-Native Cameras (Stable upgrade channel) released
• 07/04/2026 Vulnerability publicly disclosed