---
id: CVE-2026-109959
title: >-
  EspoCRM 4.0.0 before 10.0.7 contains an access control vulnerability that
  allows authenticated users to read audited field values restricted by
  field-level security by fetching individual stream notes
summary: >-
  EspoCRM 4.0.0 before 10.0.7 contains an access control vulnerability that
  allows authenticated users to read audited field values restricted by
  field-level security by fetching individual stream notes. Users with stream
  access to a paren…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-200
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T17:17:32.903'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109959'
references:
  - url: 'https://github.com/espocrm/espocrm/security/advisories/GHSA-mr36-xx82-qf6h'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/espocrm-4.0.0-before-10.0.7-field-level-security-bypass-via-note-read-endpoint
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-13T14:29:01.856Z'
---

## Overview

EspoCRM 4.0.0 before 10.0.7 contains an access control vulnerability that allows authenticated users to read audited field values restricted by field-level security by fetching individual stream notes. Users with stream access to a parent record can request GET /Note/{id}, which skips the NoteAccessControl filter, and recover data.attributes.was and became values of restricted fields.

## Remediation

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