7.5

CVE-2026-50271: datadog dd-trace-py

CVSS: 7.5v3.1HighAwaiting analysis
AliasesGHSA-mw54-j2v2-42hrPYSEC-2026-3461CGA-2j2c-rx7j-24r3
Published 17-07-2026Last modified 20-07-2026
Open JSON

Vulnerability summary

CVE-2026-50271 is a high (CVSS 7.5) vulnerability in datadog dd-trace-py. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.6% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.79%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-6C9Q-955G-F6M6

Timeline

  1. 17-07-2026
    PublishedVulnerability first disclosed.
  2. 20-07-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.79%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

0.00 pp

From 0.79% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.79%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard23 products
  • datadog-agent-7.71-core-integrationsAll versions (No fix recorded)
  • datadog-agent-7.72-core-integrationsAll versions (No fix recorded)
  • datadog-agent-7.73-core-integrations< 7.73.3-r23
  • datadog-agent-7.74-core-integrations< 7.74.1-r24
  • datadog-agent-7.75-core-integrationsAll versions (No fix recorded)
Wolfi10 products
  • datadog-agent-7.72-core-integrationsAll versions (No fix recorded)
  • datadog-agent-7.73-core-integrations< 7.73.3-r23
  • datadog-agent-7.74-core-integrations< 7.74.1-r24
  • datadog-agent-7.75-core-integrationsAll versions (No fix recorded)
  • datadog-agent-7.76All versions (No fix recorded)
Datadog1 product
PyPI1 product
  • ddtrace< 4.8.2

4 vendors · 35 products

References

9 links