{"id":"UBUNTU-CVE-2024-27306","details":"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.","modified":"2026-02-05T11:08:15.466348Z","published":"2024-04-18T15:15:00Z","related":["USN-7642-1"],"upstream":["CVE-2024-27306"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-27306"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-27306"},{"type":"REPORT","url":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-7gpw-8wmc-pm8g"},{"type":"REPORT","url":"https://github.com/aio-libs/aiohttp/pull/8319"},{"type":"REPORT","url":"https://github.com/aio-libs/aiohttp/commit/28335525d1eac015a7e7584137678cbb6ff19397"},{"type":"REPORT","url":"https://github.com/aio-libs/aiohttp/commit/28335525d1eac015a7e7584137678cbb6ff19397"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7642-1"}],"affected":[{"package":{"name":"python-aiohttp","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/python-aiohttp@3.0.1-1ubuntu0.1~esm5?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.1-1ubuntu0.1~esm5"}]}],"versions":["2.2.3-1build1","2.2.3-2","2.3.6-1","3.0.1-1","3.0.1-1ubuntu0.1~esm1","3.0.1-1ubuntu0.1~esm4"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-aiohttp","binary_version":"3.0.1-1ubuntu0.1~esm5"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-27306.json"}},{"package":{"name":"python-aiohttp","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/python-aiohttp@3.8.1-4ubuntu0.2+esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8.1-4ubuntu0.2+esm1"}]}],"versions":["3.7.4-1","3.7.4-1build2","3.8.1-3","3.8.1-4","3.8.1-4build1","3.8.1-4ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-aiohttp","binary_version":"3.8.1-4ubuntu0.2+esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-27306.json"}},{"package":{"name":"python-aiohttp","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/python-aiohttp@3.9.1-1ubuntu0.1+esm1?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.9.1-1ubuntu0.1+esm1"}]}],"versions":["3.8.4-1","3.9.1-1","3.9.1-1build1","3.9.1-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-aiohttp","binary_version":"3.9.1-1ubuntu0.1+esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-27306.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}