CVE-2026-77089: CWE-290: Authentication Bypass by Spoofing in Commvault Commvault Cloud
CVE-2026-77089 is an authentication bypass vulnerability in the Command Center API of Commvault Cloud that affects privilege management. This critical flaw allows attackers to bypass authentication controls, potentially gaining unauthorized access. The issue impacts specific versions of Commvault Cloud software. No official patch or remediation level has been confirmed yet. Users are advised to upgrade to a resolved maintenance release once available.
AI Analysis
Technical Summary
The Command Center API in Commvault Cloud contains an authentication bypass vulnerability classified as CWE-290. This flaw affects privilege management by allowing authentication to be bypassed, which can lead to unauthorized access. The vulnerability has a CVSS 4.0 score of 9.3, indicating critical severity with network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability. The affected versions explicitly include 11.36.0, 11.40.0, 11.44.0, and 11.46.0. No vendor advisory or patch information is currently available to confirm remediation status.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to bypass authentication mechanisms in the Command Center API, potentially gaining unauthorized access to privileged functions or data. This could compromise confidentiality, integrity, and availability of the affected system. The critical CVSS score reflects the high risk associated with this issue.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Customers should monitor Commvault's official channels for updates and apply any released maintenance updates that address this vulnerability. Until a patch is available, consider restricting access to the Command Center API to trusted networks and users where possible.
CVE-2026-77089: CWE-290: Authentication Bypass by Spoofing in Commvault Commvault Cloud
Description
CVE-2026-77089 is an authentication bypass vulnerability in the Command Center API of Commvault Cloud that affects privilege management. This critical flaw allows attackers to bypass authentication controls, potentially gaining unauthorized access. The issue impacts specific versions of Commvault Cloud software. No official patch or remediation level has been confirmed yet. Users are advised to upgrade to a resolved maintenance release once available.
CVSS v4.0
Score 9.3critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Command Center API in Commvault Cloud contains an authentication bypass vulnerability classified as CWE-290. This flaw affects privilege management by allowing authentication to be bypassed, which can lead to unauthorized access. The vulnerability has a CVSS 4.0 score of 9.3, indicating critical severity with network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability. The affected versions explicitly include 11.36.0, 11.40.0, 11.44.0, and 11.46.0. No vendor advisory or patch information is currently available to confirm remediation status.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to bypass authentication mechanisms in the Command Center API, potentially gaining unauthorized access to privileged functions or data. This could compromise confidentiality, integrity, and availability of the affected system. The critical CVSS score reflects the high risk associated with this issue.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Customers should monitor Commvault's official channels for updates and apply any released maintenance updates that address this vulnerability. Until a patch is available, consider restricting access to the Command Center API to trusted networks and users where possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Commvault
- Date Reserved
- 2026-08-20T10:56:18.889Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa00199acd9273b49a6cf10
Added to database: 09/08/2026, 12:37:45 UTC
Last enriched: 09/08/2026, 12:53:47 UTC
Last updated: 09/08/2026, 19:56:09 UTC
Views: 5
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