Homepage

Inefficient Regular Expression Complexity Affecting langfuse-4 package, versions <4.71.0-r1

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.45% (39th percentile)

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-LANGFUSE4-21784521
  • published29 Oct 2026
  • disclosed27 Oct 2026
Report a new vulnerability Found a mistake?

Introduced: 27 Oct 2026

NewCVE-2026-116693  (opens in a new tab)
CWE-1333  (opens in a new tab)

How to fix?

Upgrade Chainguard langfuse-4 to version 4.71.0-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream langfuse-4 package and not the langfuse-4 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

dd-trace is the Datadog APM client for Node.js. From 2.0.0 until 5.131.1 and 6.20.1, the default DD_TRACE_OBFUSCATION_QUERY_STRING_REGEXP can perform excessive backtracking on attacker-controlled URL query strings. The expression is applied synchronously while recording HTTP URL metadata, allowing a crafted request to consume excessive CPU, stall request processing, and make the instrumented application unavailable. This issue is fixed in versions 5.131.1 and 6.20.1.