# CVE-2026-77096: Commvault CVFS missing authentication in command execution

Source: https://junglewise.ai/threats/cve-2026-77096-cvfs-contained-a-missing-authentication-condition-affecting  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-77096 · Severity: info · Published 2026-10-13

Commvault's CVFS (a storage virtualization component used in their backup and data management platform) lacks proper authentication checks before executing commands, allowing unauthorized actions. An attacker could exploit this to execute arbitrary commands and compromise data stored in the Commvault system.

Technologies: [Commvault](https://junglewise.ai/threats/technologies/commvault). Vendors: [Commvault](https://junglewise.ai/threats/vendors/commvault).

## Quick answers

**Is CVE-2026-77096 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-77096 being exploited in the wild.

**How severe is CVE-2026-77096?** Informational severity, published 13 October 2026.

**Which products and versions are affected?** Commvault 11.46.0-11.46.39, 11.44.0-11.44.24, 11.40.0-11.40.77, 11.36.0-11.36.126; Commvault CVFS 5.0.1.0-5.0.14.4.

**Is there a fix for CVE-2026-77096?** Yes: fixed in Commvault Linux 11.46.40 and higher, 11.44.25 and higher, 11.40.78 and higher, 11.36.127 and higher; Grid(HSX) CVFS Linux 5.0.14.5 and higher. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-77096 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-77096?** Check whether you run Commvault or Commvault CVFS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in Commvault Linux 11.46.40 and higher, 11.44.25 and higher, 11.40.78 and higher, 11.36.127 and higher; Grid(HSX) CVFS Linux 5.0.14.5 and higher

## Technical details

CVFS contains a missing authentication condition that allows unauthenticated or improperly authenticated command execution. The vulnerability affects multiple versions of Commvault across Linux platforms and HyperScale X Grid deployments. Commvault has provided patched versions that add proper authentication checks to command execution paths.

## Affected products

- Commvault Commvault 11.46.0-11.46.39, 11.44.0-11.44.24, 11.40.0-11.40.77, 11.36.0-11.36.126
- Commvault CVFS 5.0.1.0-5.0.14.4

## Timeline

- 2026-10-13: disclosed

## References

- [https://documentation.commvault.com/securityadvisories/CV_2026_10_7.html](https://documentation.commvault.com/securityadvisories/CV_2026_10_7.html)

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- [Commvault QAPI stack-based buffer overflow](https://junglewise.ai/threats/cve-2026-97333-qapi-contained-a-stack-based-buffer-overflow-affecting-service)
- [Commvault null pointer dereference in CvFWD](https://junglewise.ai/threats/cve-2026-77095-cvfwd-contained-a-null-pointer-dereference-affecting-service)
- [Commvault CvFWD out-of-bounds write denial of service](https://junglewise.ai/threats/cve-2026-77094-cvfwd-contained-an-out-of-bounds-write-affecting-service)
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