---
id: CVE-2026-77090
title: >-
  CVFS contained an XML external entity (XXE) reference handling issue affecting
  information dislcosure
summary: >-
  CVFS contained an XML external entity (XXE) reference handling issue affecting
  information dislcosure.  Software customers upgrade to resolved maintenance
  release. Update CVFS.
severity: high
cwe:
  - CWE-611
published: '2026-10-13'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T19:17:20.647'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77090'
references:
  - url: 'https://documentation.commvault.com/securityadvisories/CV_2026_07_4.html'
    label: 050066fd-a2f9-4f32-ab5d-4c53f48bc333
tags:
  - nvd
  - cve.org
epss: 0.0033
epssPercentile: 0.26022
ingestedAt: '2026-10-13T15:33:40.081Z'
vendor: Commvault
product: Commvault Cloud
affected:
  - cloud >= 11.46.0 <= 11.46.29
  - cloud >= 11.44.0 <= 11.44.24
  - cloud >= 11.40.0 <= 11.40.77
  - cloud >= 11.36.0 <= 11.36.126
  - grid_hsx_cvfs >= 5.0.1.0 <= 5.0.14.4
cvss: 8.7
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-14T18:55:24.747642Z'
cvssSource: cna
---

## Overview

CVFS contained an XML external entity (XXE) reference handling issue affecting information dislcosure.  Software customers upgrade to resolved maintenance release. Update CVFS.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.