CVE-2026-50272Network attack vector

Remote service interruption via unbounded baggage parsing

Published Jul 17, 2026 · Updated Jul 17, 2026

Denial of service in Datadog dd-trace-js before 5.100.0 allows remote attackers to exhaust CPU and memory via W3C baggage headers. The baggage and text-map extraction paths split untrusted headers into entries without enforcing configured item-count or byte-size limits. Baggage extraction is enabled by default in most deployments, exposing instrumented HTTP services to request-driven service interruption.

CVSS severity7.5
High
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Datadog dd-trace-js before 5.100.0 allows remote attackers to exhaust CPU and memory via W3C baggage headers. The baggage and text-map extraction paths split untrusted headers into entries without enforcing configured item-count or byte-size limits. Baggage extraction is enabled by default in most deployments, exposing instrumented HTTP services to request-driven service interruption.

The record

CVE
CVE-2026-50272
Published
Jul 17, 2026
Updated
Jul 17, 2026
Vendor
Datadog
Product
dd-trace-js
Classifications
T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 5.100.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Datadog · dd-trace-jsversion=< 5.100.0

Published CVSS scores

7.5DatadogCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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