---
id: CVE-2026-100362
title: 'SuiteCRM: V8 OAuth2 Username Enumeration'
summary: >-
  SuiteCRM is an open-source, enterprise-ready Customer Relationship Management
  (CRM) software application. Prior to 7.15.2 and 8.10.2, the
  /legacy/Api/V8/OAuth2 password-grant endpoint returns distinct error messages
  for an invalid userna…
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-204
vendor: SuiteCRM
product: SuiteCRM
affected:
  - SuiteCRM < 7.15.2
  - 'SuiteCRM >= 8.0.0, < 8.10.2'
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T18:44:59.291Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-100362'
references:
  - url: >-
      https://github.com/SuiteCRM/SuiteCRM/security/advisories/GHSA-rc46-hjjp-4jv5
    label: >-
      https://github.com/SuiteCRM/SuiteCRM/security/advisories/GHSA-rc46-hjjp-4jv5
  - url: >-
      https://github.com/SuiteCRM/SuiteCRM-Core/commit/a11f50180d939f639cc468b5d536e8ad714dfb68
    label: >-
      https://github.com/SuiteCRM/SuiteCRM-Core/commit/a11f50180d939f639cc468b5d536e8ad714dfb68
  - url: >-
      https://github.com/SuiteCRM/SuiteCRM/commit/d6bca97a0159ec019a969b86eca32affab3beb7c
    label: >-
      https://github.com/SuiteCRM/SuiteCRM/commit/d6bca97a0159ec019a969b86eca32affab3beb7c
  - url: 'https://github.com/SuiteCRM/SuiteCRM-Core/releases/tag/v8.10.2'
    label: 'https://github.com/SuiteCRM/SuiteCRM-Core/releases/tag/v8.10.2'
  - url: 'https://github.com/SuiteCRM/SuiteCRM/releases/tag/v7.15.2'
    label: 'https://github.com/SuiteCRM/SuiteCRM/releases/tag/v7.15.2'
tags:
  - cve.org
ingestedAt: '2026-11-05T22:38:31.477Z'
---

## Overview

SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Prior to 7.15.2 and 8.10.2, the /legacy/Api/V8/OAuth2 password-grant endpoint returns distinct error messages for an invalid username and an invalid password. An unauthenticated remote attacker can use those response differences to enumerate valid CRM usernames and target confirmed accounts with password spraying, credential stuffing, brute-force, or social-engineering attacks. This issue is fixed in versions 7.15.2 and 8.10.2.

## Affected

- `SuiteCRM < 7.15.2`
- `SuiteCRM >= 8.0.0, < 8.10.2`

## Remediation

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