CVE-2024-27306

Publication date 18 April 2024

Last updated 18 July 2025

Ubuntu priority

Cvss 3 Severity Score

Description

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. A XSS vulnerability exists on index pages for static file handling. This vulnerability is fixed in 3.9.4. We have always recommended using a reverse proxy server (e.g. nginx) for serving static files. Users following the recommendation are unaffected. Other users can disable `show_index` if unable to upgrade.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
python-aiohttp	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Fixed 3.9.1-1ubuntu0.1+esm1
	23.10 mantic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Fixed 3.8.1-4ubuntu0.2+esm1
	20.04 LTS focal	Fixed 3.6.2-1ubuntu1+esm4
	18.04 LTS bionic	Fixed 3.0.1-1ubuntu0.1~esm5
	16.04 LTS xenial	Not affected

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Severity score breakdown

Parameter	Value
Base score	6.1 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Changed
Confidentiality	Low
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

USN-7642-1
AIOHTTP vulnerabilities
17 July 2025