CVE-2026-77097: Commvault Private Metrics Server authentication bypass in metrics upload

CVE-2026-77097 · Severity: high · CVSS 8.2 · Published 2026-09-08

Commvault's Private Metrics Server is a component used to collect and upload performance and health metrics for cloud-based infrastructure management. The software contains a missing authentication check that allows unauthenticated attackers to upload metrics, potentially disrupting service availability and degrading operational visibility across managed systems. Organizations using affected versions must upgrade immediately to restore proper access controls.

Technologies: Commvault. Vendors: Commvault.

Quick answers

Is CVE-2026-77097 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-77097 being exploited in the wild.
How severe is CVE-2026-77097?
High severity, with a CVSS score of 8.2, published 8 September 2026.
Which products and versions are affected?
Commvault 11.36.0–11.36.122, 11.40.0–11.40.71, 11.44.0–11.44.19, 11.46.0–11.46.19.
Is there a fix for CVE-2026-77097?
A patch was published on 2026-09-08: Resolved versions available: 11.36.123, 11.40.72, 11.44.20, 11.46.20 and higher Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-77097 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-77097?
Check whether you run Commvault at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an authentication bypass (missing authentication condition) in the metrics upload functionality of Commvault's Private Metrics Server. The flaw allows unauthenticated requests to the metrics upload endpoint, leading to denial of service through invalid or malicious metric submissions that can impact service availability. The vulnerability affects Commvault versions 11.36.0–11.36.122, 11.40.0–11.40.71, 11.44.0–11.44.19, and 11.46.0–11.46.19 on Linux and Windows platforms. Patches are available in versions 11.36.123, 11.40.72, 11.44.20, 11.46.20 and higher; customers should upgrade to the appropriate resolved maintenance release for their version track.

Affected products

  • Commvault Commvault 11.36.0–11.36.122, 11.40.0–11.40.71, 11.44.0–11.44.19, 11.46.0–11.46.19

Timeline

  • 2026-09-08: disclosed: CVE-2026-77097 published; advisory CV_2026_08_1 issued
  • 2026-09-08: patched: Resolved versions available: 11.36.123, 11.40.72, 11.44.20, 11.46.20 and higher

References

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