Authentication Bypass Issue in Command Center API by Commvault
CVE-2026-77089

9.3CRITICAL

Key Information:

Vendor

Commvault

Status
Commvault Cloud
Vendor
CVE Published:
8 September 2026

What is CVE-2026-77089?

An authentication bypass vulnerability was identified in the Command Center API from Commvault, affecting privileged access controls. This security flaw allows attackers to exploit the system's authentication mechanisms, potentially leading to unauthorized access to sensitive features and data. Users are urged to upgrade to the latest maintenance release to mitigate the risks associated with this issue. It's critical for organizations using Commvault's Command Center to act promptly to secure their environments.

Affected Version(s)

Commvault Cloud Windows 11.46.0 <= 11.46.19

Commvault Cloud Windows 11.44.0 <= 11.44.19

Commvault Cloud Windows 11.40.0 <= 11.40.71

References

https://documentation.commvault.com/securityadvisories/CV...

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Michael Tucker and Tan Chew Keong from the XOR team at JPMorgan Chase.
.