CVE-2025-59305: High severity Langfuse Langfuse vulnerability

Published Sep 24, 2025
·
Updated

Improper authorization in the background migration endpoints of Langfuse 3.1 before d67b317 allows any authenticated user to invoke migration control functions. This can lead to data corruption or denial of service through unauthorized access to TRPC endpoints such as backgroundMigrations.all, backgroundMigrations.status, and backgroundMigrations.retry.

Affected Software

2 affected components
Langfuse Langfuse<3.1
Langfuse Langfuse>=3.1.0<3.109.0

Event History

Sep 24, 2025
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2025-59305?

CVE-2025-59305 has a high severity rating due to its potential for data corruption and unauthorized access.

2

How do I fix CVE-2025-59305?

To fix CVE-2025-59305, update Langfuse to version 3.1 or later where the vulnerability has been addressed.

3

Who is affected by CVE-2025-59305?

CVE-2025-59305 affects users of Langfuse versions prior to 3.1, specifically those with improper authorization in background migration endpoints.

4

What are the potential impacts of CVE-2025-59305?

The potential impacts of CVE-2025-59305 include data corruption and denial of service resulting from unauthorized access to migration control functions.

5

How does CVE-2025-59305 occur?

CVE-2025-59305 occurs due to improper authorization checks in the background migration endpoints that allow any authenticated user to access sensitive functions.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203