← Vulnerability feed

Vulnerability record · CVE-2025-9803 · published 25 November 2025

CVE-2025-9803: Lunary improper authentication vulnerability

Lunary · Lunary

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.

8.8 CVSS 3.1 High EPSS 0.47% · top 61.6% CWE-287 · Improper authenticationCWE-863 · Incorrect authorization
8.8CVSS 3.1 base score
0.47%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/lunary-ai/lunary/commit/95a2cc8e012bf5f089edbfa072ba66dcb7e10d91 Broken Link
https://huntr.com/bounties/4734f35f-514c-4d10-98fa-3a54514f6af6 ExploitThird Party Advisory
https://huntr.com/bounties/4734f35f-514c-4d10-98fa-3a54514f6af6 ExploitThird Party Advisory

Track CVE-2025-9803 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-9095Lunary missing authorization vulnerabilityIn lunary-ai/lunary version v1.4.28, the /bigquery API route lacks proper access control, allowing any logged-in user to create a Datastream to Googl…EPSS 0.72%9.8CVE-2024-7456Lunary sql injection vulnerabilityA SQL injection vulnerability exists in the `/api/v1/external-users` route of lunary-ai/lunary version v1.4.2. The `order by` clause of the SQL query…EPSS 1.4%9.8CVE-2024-4146Lunary incorrect authorization vulnerabilityIn lunary-ai/lunary version v1.2.13, an incorrect authorization vulnerability exists that allows unauthorized users to access and manipulate projects…EPSS 0.54%9.6CVE-2025-5352Lunary cross-site scripting vulnerabilityA critical stored Cross-Site Scripting (XSS) vulnerability exists in the Analytics component of lunary-ai/lunary versions up to 1.9.23, where the NEX…EPSS 0.50%9.3CVE-2024-5328Lunary server-side request forgery (ssrf) vulnerabilityA Server-Side Request Forgery (SSRF) vulnerability exists in the lunary-ai/lunary application, specifically within the endpoint '/auth/saml/tto/downl…EPSS 0.42%9.1CVE-2024-7475Lunary missing authorization vulnerabilityAn improper access control vulnerability in lunary-ai/lunary version 1.3.2 allows an attacker to update the SAML configuration without authorization.…EPSS 0.73%9.1CVE-2024-1739Lunary vulnerabilitylunary-ai/lunary is vulnerable to an authentication issue due to improper validation of email addresses during the signup process. Specifically, the …EPSS 0.56%9.1CVE-2024-1740Lunary incorrect authorization vulnerabilityIn lunary-ai/lunary version 1.0.1, a vulnerability exists where a user removed from an organization can still read, create, modify, and delete logs b…EPSS 0.64%

Source: NIST National Vulnerability Database (record CVE-2025-9803), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.