Commvault Cloud vulnerability

CommServe contained an authorization bypass vulnerability affecting a limited set of command execution operations. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including Commserve, Webserver, Command Center, Media Agents, Clients and HyperScale X.

Published 11 Aug 2026Updated 11 Sep 20261 sources
CVSS 9.2

What happened

CommServe contained an authorization bypass vulnerability affecting a limited set of command execution operations. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including Commserve, Webserver, Command Center, Media Agents, Clients and HyperScale X.

Affected versions

Commvault Cloud: 11.46.0 through 11.46.9 (custom); 11.44.0 through 11.44.10 (custom); 11.40.0 through 11.40.62 (custom); 11.36.0 through 11.36.113 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.