Vulnerability in Langfuse
CVE-2025-64504
Langfuse is an open source large language model engineering platform. Starting in version 2.70.0 and prior to versions 2.95.11 and 3.124.1, in certain project membership APIs, the server trusted a user‑controlled orgId and used it in autho…
EPSS: 0.003 (24.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.
Affected products
- Langfuse — versions >= 2.70.0, < 2.95.11, >= 3.0.0, < 3.124.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2025-64504?
- CVE-2025-64504 is a medium-severity vulnerability in Langfuse, classified under CWE-202. CVSS score: 5.0/10. Published 2025-11-10.
- How severe is CVE-2025-64504?
- Medium severity. CVSS v3 base score is 5.0 out of 10.