CVE-2025-9803 CRITICAL

CVE-2025-9803: Improper Authentication in lunary-ai/lunary

Vendor Lunary-Ai
Product lunary-ai/lunary
Weakness CWE-287 · Improper authentication
Published November 25, 2025
Last update November 25, 2025

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

What the vulnerability does

01Description

lunary-ai/lunary version 1.9.34 is vulnerable to an account takeover due to improper authentication in the Google OAuth integration. The application fails to verify the 'aud' (audience) field in the access token issued by Google, which is crucial for ensuring the token is intended for the application. This oversight allows attackers to use tokens issued to malicious applications to gain unauthorized access to user accounts. The issue is resolved in version 1.9.35.

Key dates

02Disclosure timeline

November 25, 2025 CVE published
November 25, 2025 Record updated