Allocation of Resources Without Limits or Throttling Affecting airflow-core-3 package, versions <3.3.2-r3


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.34% (26th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-AIRFLOWCORE3-20366919
  • published1 Oct 2026
  • disclosed29 Sept 2026

Introduced: 29 Sep 2026

NewCVE-2026-97689  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Chainguard airflow-core-3 to version 3.3.2-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream airflow-core-3 package and not the airflow-core-3 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

urllib3 is an HTTP client library for Python. From 1.10.3 until 2.8.0, the HTTPResponse.read_chunked and HTTPResponse.stream methods can allocate unbounded memory because the streaming chunk parser buffers the chunk-size field until newline or EOF without a length bound. The trigger is that a malicious server returns Transfer-Encoding: chunked followed by a very long run of bytes without a newline. The attack mechanism is that a malicious HTTP server sends a very long unterminated chunk-size line. The impact is that unbounded memory allocation can exhaust the client process. This issue is fixed in version 2.8.0.

CVSS Base Scores

version 3.1