dd-trace: ReDOS in URL query string obfuscation

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-116693
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-27 21:18:05 UTC
Updated2026-10-28 15:24:56 UTC
Descriptiondd-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.

Risk And Classification

Primary CVSS: v4.0 8.7 HIGH from [email protected]

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.004490000 probability, percentile 0.389190000 (date 2026-10-28)

Problem Types: CWE-1333 | CWE-1333 CWE-1333: Inefficient Regular Expression Complexity

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary8.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNADECLARED8.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA DataDog Dd-trace-js affected >= 2.0.0, < 5.131.1 Not specified
CNA DataDog Dd-trace-js affected >= 6.0.0, < 6.20.1 Not specified

References

ReferenceSourceLinkTags
github.com/DataDog/dd-trace-js/commit/cf4e68a45fa1442c9850f2086c81901258... [email protected] github.com
github.com/DataDog/dd-trace-js/releases/tag/v5.131.1 [email protected] github.com
github.com/DataDog/dd-trace-js/pull/10675 [email protected] github.com
github.com/DataDog/dd-trace-js/security/advisories/GHSA-x94g-w73q-hpcw [email protected] github.com
github.com/DataDog/dd-trace-js/releases/tag/v6.20.1 [email protected] github.com
github.com/DataDog/dd-trace-js/commit/5eeee790c93036a50549056fc890028cb4... [email protected] github.com
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