Improper Input Validation Affecting langfuse-fips-2 package, versions <2.95.12-r1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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 applicationsSnyk Learn
Learn about Improper Input Validation vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-CHAINGUARDLATEST-LANGFUSEFIPS2-14192902
- published5 Dec 2025
- disclosed1 Dec 2025
Introduced: 1 Dec 2025
NewCVE-2025-66400 (opens in a new tab)How to fix?
Upgrade Chainguard langfuse-fips-2 to version 2.95.12-r1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream langfuse-fips-2 package and not the langfuse-fips-2 package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
mdast-util-to-hast is an mdast utility to transform to hast. From 13.0.0 to before 13.2.1, multiple (unprefixed) classnames could be added in markdown source by using character references. This could make rendered user supplied markdown code elements appear like the rest of the page. This vulnerability is fixed in 13.2.1.