CVE-2026-77089
Undergoing Analysis Undergoing Analysis - In Progress

Authentication Bypass in Command Center API

Vulnerability report for CVE-2026-77089, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-08

Last updated on: 2026-09-09

Assigner: Commvault

Description

Command Center API contained an authentication bypass issue affecting privilege management. Software customers upgrade to resolved maintenance release. Update Command Center.

CVSS Scores

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Meta Information

Published
2026-09-08
Last Modified
2026-09-09
Generated
2026-09-09
AI Q&A
2026-09-09
EPSS Evaluated
N/A
NVD

Affected Vendors & Products

Showing 8 associated CPEs
Vendor Product Version / Range
commvault command_center From 11.36.0 (inc) to 11.36.122 (inc)
commvault command_center From 11.40.0 (inc) to 11.40.71 (inc)
commvault command_center From 11.44.0 (inc) to 11.44.19 (inc)
commvault command_center From 11.46.0 (inc) to 11.46.19 (inc)
commvault command_center From 11.46.20 (inc)
commvault command_center From 11.44.20 (inc)
commvault command_center From 11.40.72 (inc)
commvault command_center From 11.36.123 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-290 This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

Attack-Flow Graph

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Executive Summary

CVE-2026-77089 is an authentication bypass vulnerability in the Command Center API of Commvault Software that affects privilege management. It allows unauthorized access to sensitive functions by bypassing normal authentication mechanisms.

Detection Guidance

To detect this vulnerability, check if your Commvault Command Center API is running an affected version (11.46.0 to 11.46.19, 11.44.0 to 11.44.19, 11.40.0 to 11.40.71, or 11.36.0 to 11.36.122). Log into the Command Center, go to Manage > Servers, filter by relevant roles, and verify the server versions on the listing page.

Impact Analysis

This vulnerability can allow attackers to gain unauthorized access to sensitive functions and data, potentially leading to data breaches, privilege escalation, or unauthorized system modifications. It impacts specific versions of Commvault on Linux and Windows platforms.

Mitigation Strategies

Immediately upgrade to a fixed version of Commvault software: 11.46.20 or higher, 11.44.20 or higher, 11.40.72 or higher, or 11.36.123 or higher. This resolves the authentication bypass issue in the Command Center API.

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