---
id: CVE-2026-121939
title: Databasement before 1.10.9 Account Takeover via OIDC Email Auto-Linking
summary: >-
  Databasement before 1.10.9 contains an authentication bypass vulnerability in
  OAuthService::findOrCreateLocalUser() that links OIDC identities to local
  users by email without checking email_verified. Attackers can register an
  identity pr…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-290
vendor: David-Crty
product: Databasement
affected:
  - Databasement < 1.10.9
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-04T18:54:13.039388Z'
exploitAvailable: true
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T18:54:39.641Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121939'
references:
  - url: >-
      https://github.com/David-Crty/databasement/security/advisories/GHSA-mh6w-2cch-w8v8
    label: GitHub Security Advisory (GHSA-mh6w-2cch-w8v8)
  - url: >-
      https://github.com/David-Crty/databasement/commit/b7f4079c02b7ce3f1cf2844de182e809636c3382
  - url: 'https://github.com/David-Crty/databasement/releases/tag/v1.10.9'
    label: Databasement v1.10.9 Release Notes
  - url: >-
      https://github.com/David-Crty/databasement/blob/v1.10.8/app/Services/OAuthService.php#L55-L68
  - url: >-
      https://www.vulncheck.com/advisories/databasement-before-1.10.9-account-takeover-via-oidc-email-auto-linking
    label: >-
      VulnCheck Advisory: Databasement before 1.10.9 Account Takeover via OIDC
      Email Auto-Linking
tags:
  - cve.org
  - exploit-available
ingestedAt: '2026-11-05T21:36:00.509Z'
epss: 0.00544
epssPercentile: 0.45902
---

## Overview

Databasement before 1.10.9 contains an authentication bypass vulnerability in OAuthService::findOrCreateLocalUser() that links OIDC identities to local users by email without checking email_verified. Attackers can register an identity provider account with a victim's unverified email to log in as any user, including the super-admin, and retain access after password resets.

## Affected

- `Databasement < 1.10.9`

## Remediation

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