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.
Published: 2026-10-27
Score: 8.7 High
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-x94g-w73q-hpcw dd-trace: ReDOS in URL query string obfuscation
History

Tue, 27 Oct 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Datadog
Datadog dd-trace-js
Vendors & Products Datadog
Datadog dd-trace-js

Tue, 27 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
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.
Title dd-trace: ReDOS in URL query string obfuscation
Weaknesses CWE-1333
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Datadog Dd-trace-js
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-27T20:07:01.195Z

Reserved: 2026-10-26T20:00:59.830Z

Link: CVE-2026-116693

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-27T21:18:05.167

Modified: 2026-10-27T21:18:05.167

Link: CVE-2026-116693

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T22:30:10Z

Weaknesses
  • CWE-1333

    Inefficient Regular Expression Complexity