CVE-2026-121939
Databasement before 1.10.9 Account Takeover via OIDC Email Auto-Linking
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Databasement David-Crty David-Crty/databasement
github |
≥ 0; < 1.10.9 (affected, semver)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 9.2 critical |
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 8.1 high |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | CNA: VulnCheck |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/David-Crty/databasement/security/advisories/GHSA-mh6w-2cch-w8v8CNA: VulnCheck · vendor-advisory
- https://github.com/David-Crty/databasement/commit/b7f4079c02b7ce3f1cf2844de182e809636c3382CNA: VulnCheck · patch
- https://github.com/David-Crty/databasement/releases/tag/v1.10.9CNA: VulnCheck · release-notes
- https://github.com/David-Crty/databasement/blob/v1.10.8/app/Services/OAuthService.php#L55-L68CNA: VulnCheck · technical-description
- https://www.vulncheck.com/advisories/databasement-before-1.10.9-account-takeover-via-oidc-email-auto-linkingCNA: VulnCheck · third-party-advisory
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