CVE-2026-50272

HIGH 7.5

dd-trace: Improper parsing of W3C baggage headers may lead to DoS

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

dd-trace is the Datadog APM client for Node.js. Prior to 5.100.0, W3C baggage propagation in packages/dd-trace/src/baggage.js and packages/dd-trace/src/opentracing/propagation/text_map.js parsed incoming baggage HTTP headers without enforcing DD_TRACE_BAGGAGE_MAX_ITEMS or DD_TRACE_BAGGAGE_MAX_BYTES on extraction. A remote, unauthenticated attacker can send a request whose baggage header contains an arbitrarily large number of comma-separated key-value pairs, or a single very large value, causing unbounded CPU and memory consumption and enabling a remote denial of service against any HTTP service with baggage propagation enabled. This issue is fixed in version 5.100.0.

CWE	CWE-770
Vendor	datadog
Product	dd-trace-js
Published	Jul 17, 2026

Stay Ahead of the Next One

Get instant alerts for datadog dd-trace-js

Be the first to know when new high vulnerabilities affecting datadog dd-trace-js are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

DataDog / dd-trace-js

< 5.100.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/DataDog/dd-trace-js/security/advisories/GHSA-wxqq-gcq8-c443 github.com: https://github.com/DataDog/dd-trace-js/pull/8255 github.com: https://github.com/DataDog/dd-trace-js/commit/a7d4c0da05f67cde05a99272b725a317c461d0e6 github.com: https://github.com/DataDog/dd-trace-js/releases/tag/v5.100.0