{"id":"UBUNTU-CVE-2026-34993","details":"AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, using ``CookieJar.load()`` with untrusted input may allow arbitrary code execution. Most applications using this function will be doing so with the user's own data, so this is unlikely to affect many applications. Version 3.14.0 patches the issue. If an application does allow attacker controlled files to be loaded, a workaround on older releases would be to sanitize the files before loading.","modified":"2026-07-23T01:15:25.208580029Z","published":"2026-06-02T20:16:00Z","upstream":["CVE-2026-34993"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-34993"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-34993"}],"affected":[{"package":{"name":"python-aiohttp","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/python-aiohttp?arch=source&distro=esm-apps-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.17.2-1","0.17.4-1","0.17.4-1build1","0.20.2-1","0.20.2-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-aiohttp","binary_version":"0.20.2-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34993.json"}},{"package":{"name":"python-aiohttp","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/python-aiohttp?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","3.0.1-1ubuntu0.1~esm5","3.0.1-1ubuntu0.1~esm6","3.0.1-1ubuntu0.1~esm7"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-aiohttp","binary_version":"3.0.1-1ubuntu0.1~esm7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34993.json"}},{"package":{"name":"python-aiohttp","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/python-aiohttp?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.5.4-1","3.5.4-1build1","3.6.1-1","3.6.2-1","3.6.2-1build1","3.6.2-1ubuntu0.1~esm1","3.6.2-1ubuntu1","3.6.2-1ubuntu1+esm1","3.6.2-1ubuntu1+esm3","3.6.2-1ubuntu1+esm4","3.6.2-1ubuntu1+esm5","3.6.2-1ubuntu1+esm6"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-aiohttp","binary_version":"3.6.2-1ubuntu1+esm6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34993.json"}},{"package":{"name":"python-aiohttp","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/python-aiohttp?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","3.8.1-4ubuntu0.2+esm1","3.8.1-4ubuntu0.2+esm2","3.8.1-4ubuntu0.2+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-aiohttp","binary_version":"3.8.1-4ubuntu0.2+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34993.json"}},{"package":{"name":"python-aiohttp","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/python-aiohttp?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.8.4-1","3.9.1-1","3.9.1-1build1","3.9.1-1ubuntu0.1","3.9.1-1ubuntu0.1+esm1","3.9.1-1ubuntu0.1+esm2","3.9.1-1ubuntu0.1+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-aiohttp","binary_version":"3.9.1-1ubuntu0.1+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34993.json"}},{"package":{"name":"python-aiohttp","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/python-aiohttp?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10.11-1build1","3.11.16-1","3.11.16-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.11.16-1ubuntu0.1","binary_name":"python3-aiohttp"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34993.json"}},{"package":{"name":"python-aiohttp","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/python-aiohttp?arch=source&distro=esm-apps%2Fresolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.11.16-1","3.13.1-1","3.13.3-3","3.13.3-3ubuntu1","3.13.3-3ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.13.3-3ubuntu1+esm1","binary_name":"python3-aiohttp"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34993.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}