CVE-2026-13737: Command Restriction Bypass

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-11 · updated 2026-10-23
Weakness: CWE-863

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.

Affected products

Commvault Cloud: from 11.36.0 before 11.36.114; from 11.40.0 before 11.40.63; from 11.44.0 before 11.44.11; from 11.46.0 before 11.46.10 — fixed in 11.36.114, 11.40.63, 11.44.11, 11.46.10

How to fix

Upgrade to a fixed version: Commvault Cloud 11.36.114, 11.40.63, 11.44.11, 11.46.10. Check the vendor advisory for mitigations.

References

https://documentation.commvault.com/securityadvisories/CV_2026_07_8.html

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