prolix-oc Lumiverse up to 0.9.6 auth.api.signUpEmail module-level race condition

Summaryinfo

A vulnerability described as problematic has been identified in prolix-oc Lumiverse up to 0.9.6. Affected is the function auth.api.signUpEmail. Such manipulation of the argument module-level leads to race condition. This vulnerability is traded as CVE-2026-44443. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in prolix-oc Lumiverse up to 0.9.6. It has been rated as problematic. Affected by this issue is the function auth.api.signUpEmail. The manipulation of the argument module-level with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Lumiverse is a full-featured AI chat application. Prior to 0.9.7, consumeNonce() only checks that the module-level variable is set and unexpired. It does not validate any value from the incoming HTTP request or bind the nonce to the admin's session. If the admin's auth.api.signUpEmail() call fails before the before hook fires (e.g. BetterAuth rejects a duplicate email at the validation layer), the nonce is set but never consumed. Any POST /api/auth/sign-up/email request that arrives during the remaining window registers successfully regardless of who sent it. An attacker who can observe or predict when the admin is creating users (must be a dupplicate user) can race the 10-second window to register an unauthorized account. This vulnerability is fixed in 0.9.7.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-44443 since 05/06/2026. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 0.9.7 eliminates this vulnerability.

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Productinfo

Vendor

• prolix-oc

Name

• Lumiverse

Version

• 0.9.0
• 0.9.1
• 0.9.2
• 0.9.3
• 0.9.4
• 0.9.5
• 0.9.6

Website

• Product: https://github.com/prolix-oc/Lumiverse/

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