CVE-2026-121939
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.5% in the next 30 days (EPSS).
- Severity: 9.2 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.5% · EPSS, next 30 days
- Weakness
- CWE-290
- Record status
- Deferred
Attack profile CVSS 4.0 · 9.2
- Attack vector
- Network
- Complexity
- High
- Attack requirements
- Present
- Privileges needed
- None
- User interaction
- None
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-121939.md and follow it. Check whether this project is affected by CVE-2026-121939. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/David-Crty/databasement/commit/b7f4079c02b7ce3f1cf2844de182e809636c3382
- https://github.com/David-Crty/databasement/releases/tag/v1.10.9
- https://github.com/David-Crty/databasement/security/advisories/GHSA-mh6w-2cch-w8v8
- https://github.com/David-Crty/databasement/security/advisories/GHSA-mh6w-2cch-w8v8
References
- https://github.com/David-Crty/databasement/blob/v1.10.8/app/Services/OAuthService.php#L55-L68
- https://github.com/David-Crty/databasement/commit/b7f4079c02b7ce3f1cf2844de182e809636c3382
- https://github.com/David-Crty/databasement/releases/tag/v1.10.9
- https://github.com/David-Crty/databasement/security/advisories/GHSA-mh6w-2cch-w8v8
- https://www.vulncheck.com/advisories/databasement-before-1.10.9-account-takeover-via-oidc-email-auto-linking
- https://github.com/David-Crty/databasement/security/advisories/GHSA-mh6w-2cch-w8v8