CVE-2026-44443
Lumiverse: Sign-up nonce race condition allows unauthorized account registration
Description
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.
INFO
Published Date :
May 26, 2026, 9:16 p.m.
Last Modified :
July 20, 2026, 8:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Lumiverse to version 0.9.7 or later.
- Ensure nonce validation is tied to admin sessions.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-44443.
| URL | Resource |
|---|---|
| https://github.com/prolix-oc/Lumiverse/security/advisories/GHSA-6fcp-x253-wwv7 | |
| https://github.com/prolix-oc/Lumiverse/security/advisories/GHSA-6fcp-x253-wwv7 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-44443 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-44443
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-44443 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-44443 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 20, 2026
Action Type Old Value New Value Added Translation Title: Lumiverse de prolix-oc, Description: Lumiverse es una aplicación de chat de IA con todas las funciones. Antes de la versión 0.9.7, consumeNonce() solo verifica que la variable a nivel de módulo esté establecida y no haya caducado. No valida ningún valor de la solicitud HTTP entrante ni vincula el nonce a la sesión del administrador. Si la llamada auth.api.signUpEmail() del administrador falla antes de que se active el gancho de pre-ejecución (p. ej., BetterAuth rechaza un correo electrónico duplicado en la capa de validación), el nonce se establece pero nunca se consume. Cualquier solicitud POST /api/auth/sign-up/email que llegue durante la ventana restante se registra con éxito, independientemente de quién la haya enviado. Un atacante que pueda observar o predecir cuándo el administrador está creando usuarios (debe ser un usuario duplicado) puede aprovechar la ventana de 10 segundos para registrar una cuenta no autorizada. Esta vulnerabilidad se corrige en la versión 0.9.7. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'prolix-oc', 'product': 'Lumiverse', 'versions': [{'status': 'affected', 'version': '< 0.9.7'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-44443', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-05-28T14:05:47.430791Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 28, 2026
Action Type Old Value New Value Added Reference https://github.com/prolix-oc/Lumiverse/security/advisories/GHSA-6fcp-x253-wwv7 -
New CVE Received by [email protected]
May. 26, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Added CWE CWE-362 Added Reference https://github.com/prolix-oc/Lumiverse/security/advisories/GHSA-6fcp-x253-wwv7