CVE-2025-9803

Name: CVE-2025-9803
Creator: NVD / NIST
Published: 2025-11-25T01:15:47.137+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2025-9803 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.42%

33.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Lunary	Lunary	1.9.34

References

https://github.com/lunary-ai/lunary/commit/95a2cc8e012bf5f089edbfa072ba66dcb7e10d91Broken Link
https://huntr.com/bounties/4734f35f-514c-4d10-98fa-3a54514f6af6Exploit, Third Party Advisory
https://huntr.com/bounties/4734f35f-514c-4d10-98fa-3a54514f6af6Exploit, Third Party Advisory

Timeline

Published: Nov 25, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-9803?

How severe is CVE-2025-9803?

CVE-2025-9803 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2025-9803?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-9803?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST