[ CVE-2026-116693 · Published 27 Oct 2026 ]

dd-trace: ReDOS in URL query string obfuscation

CVSS 8.7 EPSS <1%Fix available

[ Description ]Official description

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.

[ Fixes ]Fixes and patches

  • dd-trace 5.131.1Fixed version · GitHub Advisories · npm package dd-trace: upgrade to 5.131.1 or later (affected >= 2.0.0, < 5.131.1)
  • dd-trace 6.20.1Fixed version · GitHub Advisories · npm package dd-trace: upgrade to 6.20.1 or later (affected >= 6.0.0, < 6.20.1)

[ Packages ]Affected open-source packages