CVE-2025-66478 Affecting langfuse-3 package, versions <3.137.0-r0
Threat Intelligence
Exploit Maturity
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
Proof of Concept
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-LANGFUSE3-14888472
- published7 Jan 2026
- disclosed3 Dec 2025
Introduced: 3 Dec 2025
CVE-2025-66478 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
How to fix?
Upgrade Chainguard langfuse-3 to version 3.137.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream langfuse-3 package and not the langfuse-3 package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
Rejected reason: This CVE is a duplicate of CVE-2025-55182.