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TI-2026-32383 Aliases CVE-2026-44443

Lumiverse: Sign-up nonce race condition allows unauthorized account registration

Priority MEDIUM 55CWE-362Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00118 1st percentileScored 2026-11-07
Fix Fixed Lumiverse (prolix-oc): 0.9.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
prolix-ocLumiversebefore 0.9.70.9.7Patch availableCNA
  • Lumiverse Vendorprolix-oc Affected before 0.9.7 Fixed in 0.9.7 Patch available CNA

Remediation

  • Fix · CNA Lumiverse (prolix-oc) Fixed in 0.9.7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44443

References

Other 1

  • TI-2026-32384 Lumiverse: Spindle extension install runs untrusted lifecycle scripts before security scan CVSS 3.1CRITICAL 9.1
  • TI-2026-32391 Lumiverse: TSX component sandbox escape via DOM ref and string-split identifier bypass CVSS 3.1CRITICAL 9.3
  • TI-2026-32389 Lumiverse: SMB `exists()` basename injection via smbclient `!cmd` escape CVSS 3.1CRITICAL 9.1
  • TI-2026-32390 Lumiverse: RCE via MCP stdio argument injection CVSS 3.1CRITICAL 9.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences