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6.5 Medium

Langfuse is an open source large language model engineering platform.

CVE-2025-65107

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 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 CHECK.

Assessment

CVSS
6.5 (v3.1)
Severity
Medium
EPSS
0.17% chance of exploitation in the next 30 days
Known exploited
Not listed in CISA KEV
Exploit availability
Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published
21 November 2025
Last updated
19 October 2026
Affected
langfuse · Langfuse
Weakness
CWE-285, CWE-352
Assigner
security-advisories@github.com

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

At the source

References

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