Resource Exhaustion Affecting airflow-3 package, versions <3.1.5-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.52% (42nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-AIRFLOW3-18147078
  • published22 Jul 2026
  • disclosed12 Dec 2025

Introduced: 12 Dec 2025

CVE-2025-67725  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Minimos:latest airflow-3 to version 3.1.5-r0 or higher.

NVD Description

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

Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, a single maliciously crafted HTTP request can block the server's event loop for an extended period, caused by the HTTPHeaders.add method. The function accumulates values using string concatenation when the same header name is repeated, causing a Denial of Service (DoS). Due to Python string immutability, each concatenation copies the entire string, resulting in O(n²) time complexity. The severity can vary from high if max_header_size has been increased from its default, to low if it has its default value of 64KB. This issue is fixed in version 6.5.3.

CVSS Base Scores

version 3.1