CVE-2025-65107

Langfuse SSO Account Takeover via CSRF or phishing attack

State: Published
Severity: 6.5 Medium
Published: Nov 21, 2025
Updated: Nov 24, 2025
Reserved: Nov 17, 2025

Description

Langfuse is an open source large language model engineering platform. In versions from 2.95.0 to before 2.95.12 and from 3.17.0 to before 3.131.0, in SSO provider configurations without an explicit AUTH_<PROVIDER>_CHECK setting, a potential account takeover may happen if an authenticated user is made to call a specifically crafted URL via a CSRF or phishing attack. This issue has been patched in versions 2.95.12 and 3.131.0. A workaround for this issue involves setting AUTH_<PROVIDER>_CHECK.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N	GitHub_M

Weaknesses

CWE-352 Cross-Site Request Forgery (CSRF)
CWE-285 Improper Authorization

Affected Products

Product	Versions
langfuselangfuse	>= 2.95.0, < 2.95.12Affected >= 3.17.0, < 3.131.0Affected

References

https://github.com/langfuse/langfuse/security/advisories/GHSA-w9pw-c549-5m6w

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