CVE-2026-50271 (GCVE-0-2026-50271)

Vulnerability from cvelistv5 – Published: 2026-07-17 20:42 – Updated: 2026-07-20 19:16
VLAI
Title
dd-trace-py: Improper parsing of W3C baggage headers may lead to DoS
Summary
Datadog dd-trace-py is the Datadog Python APM client. Prior to 4.8.2, Datadog tracing libraries that implement W3C baggage propagation parse incoming baggage HTTP headers without enforcing DD_TRACE_BAGGAGE_MAX_ITEMS or DD_TRACE_BAGGAGE_MAX_BYTES limits on the extract path. 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 HTTP services with baggage propagation enabled. This issue is fixed in version 4.8.2.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 19:13 UTC
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7812 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
DataDog dd-trace-py Affected: < 4.8.2
guessed Create a notification for this product.
Show details on NVD website
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