dd-trace-js: Improper parsing of W3C baggage headers may lead to DoS (CVE-2026-50272)
The dd-trace-js library versions prior to 5.100.0 contain a vulnerability where W3C baggage HTTP headers are improperly parsed without limits on item count or byte size. This flaw allows remote attackers to cause unbounded CPU and memory consumption by sending requests with very large or numerous baggage header entries, resulting in a denial of service. The baggage propagation style is enabled by default in most affected tracers, exposing internet-facing services unless explicitly restricted.
AI Analysis
Technical Summary
dd-trace-js versions before 5.100.0 do not enforce limits on the number or size of W3C baggage HTTP header entries during extraction. This improper parsing can be exploited by remote attackers to send oversized or numerous baggage headers, causing excessive CPU and memory usage and leading to denial of service. The vulnerability relates to CWE-400 (Uncontrolled Resource Consumption) and CWE-770 (Allocation of Resources Without Limits or Throttling). The baggage propagation style is enabled by default, increasing exposure risk on internet-facing services instrumented with these versions.
Potential Impact
An attacker can remotely trigger a denial of service by sending requests with large or numerous W3C baggage headers, causing unbounded CPU and memory consumption on affected dd-trace-js versions prior to 5.100.0. This impacts availability but does not affect confidentiality or integrity.
Mitigation Recommendations
A fix is available in dd-trace-js version 5.100.0 and later. Users should upgrade to version 5.100.0 or newer to remediate this vulnerability. Until upgraded, restricting or disabling baggage propagation style on internet-facing services can reduce exposure.
dd-trace-js: Improper parsing of W3C baggage headers may lead to DoS (CVE-2026-50272)
Description
The dd-trace-js library versions prior to 5.100.0 contain a vulnerability where W3C baggage HTTP headers are improperly parsed without limits on item count or byte size. This flaw allows remote attackers to cause unbounded CPU and memory consumption by sending requests with very large or numerous baggage header entries, resulting in a denial of service. The baggage propagation style is enabled by default in most affected tracers, exposing internet-facing services unless explicitly restricted.
CVSS v3.1
Score 7.5high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
dd-trace-js versions before 5.100.0 do not enforce limits on the number or size of W3C baggage HTTP header entries during extraction. This improper parsing can be exploited by remote attackers to send oversized or numerous baggage headers, causing excessive CPU and memory usage and leading to denial of service. The vulnerability relates to CWE-400 (Uncontrolled Resource Consumption) and CWE-770 (Allocation of Resources Without Limits or Throttling). The baggage propagation style is enabled by default, increasing exposure risk on internet-facing services instrumented with these versions.
Potential Impact
An attacker can remotely trigger a denial of service by sending requests with large or numerous W3C baggage headers, causing unbounded CPU and memory consumption on affected dd-trace-js versions prior to 5.100.0. This impacts availability but does not affect confidentiality or integrity.
Mitigation Recommendations
A fix is available in dd-trace-js version 5.100.0 and later. Users should upgrade to version 5.100.0 or newer to remediate this vulnerability. Until upgraded, restricting or disabling baggage propagation style on internet-facing services can reduce exposure.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-wxqq-gcq8-c443
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-50272"]
- Ecosystems
- ["npm"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a58b40468715ace43d6705c
Added to database: 07/16/2026, 10:35:48 UTC
Last enriched: 07/24/2026, 20:59:47 UTC
Last updated: 09/02/2026, 07:08:49 UTC
Views: 106
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