HTTP Request Smuggling Affecting airflow-3 package, versions <3.3.0-r4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-AIRFLOW3-18532653
- published5 Aug 2026
- disclosed3 Aug 2026
Introduced: 3 Aug 2026
NewCVE-2026-69243 (opens in a new tab)How to fix?
Upgrade Chainguard airflow-3 to version 3.3.0-r4 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 Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. A WebSocket upgrade request with a body could cause the parser to switch protocols before the complete request body was received, leaving trailing bytes to be handled as upgraded-protocol or pipelined data rather than normal HTTP body data. This issue is fixed in version 3.14.2.