CVE-2026-13737
Received Received - Intake

Allowlist Bypass in CommServe Leading to Command Execution

Publication date: 2026-08-11

Last updated on: 2026-08-11

Assigner: Commvault

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

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Meta Information

Published
2026-08-11
Last Modified
2026-08-11
Generated
2026-08-11
AI Q&A
2026-08-11
EPSS Evaluated
N/A
NVD
CVE-2026-13737
EUVD
EUVD-2026-56001

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
commvault commserve From 11.36.114 (inc) to 11.46.10 (exc)
commvault webserver From 11.36.114 (inc) to 11.46.10 (exc)
commvault command_center From 11.36.114 (inc) to 11.46.10 (exc)
commvault media_agents From 11.36.114 (inc) to 11.46.10 (exc)
commvault clients From 11.36.114 (inc) to 11.46.10 (exc)
commvault hyperscale_x From 11.36.114 (inc) to 11.46.10 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

CommServe had a flaw where an allowlist meant to restrict command execution could be bypassed, letting unauthorized commands run. This affects authorization checks for command execution in Commvault software.

Detection Guidance

To detect this vulnerability, check the installed Commvault software versions. Log into the Command Center, go to Manage > Servers, filter by server role, and verify if all servers are updated to versions 11.46.10+, 11.44.11+, 11.40.63+, or 11.36.114+.

Impact Analysis

An attacker could exploit this to run unauthorized commands on affected systems, potentially leading to data breaches, system compromise, or unauthorized access to sensitive information.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements under GDPR, HIPAA, or other regulations due to insufficient access controls.

Mitigation Strategies

Immediately upgrade all Commvault installations to the resolved versions: 11.46.10+, 11.44.11+, 11.40.63+, or 11.36.114+. Update CommServe, Webserver, Command Center, Media Agents, Clients, and HyperScale X.

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