Vulnerability DatabaseCVE-2025-59305
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CVE-2025-59305
September 24, 2025
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 Packages
https://github.com/langfuse/langfuse.git (GITHUB):
Affected version(s) >=v3.100.0 <v3.109.0
Fix Suggestion:
Update to version v3.109.0
Related Resources (3)
https://depthfirst.webflow.io/post/how-an-authorization-flaw-reveals-a-common-security-blind-spot-cve-2025-59305-case-study
https://github.com/langfuse/langfuse/pull/9028
https://depthfirst.com/post/how-an-authorization-flaw-reveals-a-common-security-blind-spot-cve-2025-59305-case-study
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CVSS v4
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Improper Authorization
CWE-285
EPSS
Base Score:
0.13