{"id":"CVE-2023-47627","summary":"Request smuggling in aiohttp","details":"aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. The HTTP parser in AIOHTTP has numerous problems with header parsing, which could lead to request smuggling. This parser is only used when AIOHTTP_NO_EXTENSIONS is enabled (or not using a prebuilt wheel). These bugs have been addressed in commit `d5c12ba89` which has been included in release version 3.8.6. Users are advised to upgrade. There are no known workarounds for these issues.","aliases":["GHSA-gfw2-4jvh-wgfg","PYSEC-2023-246"],"modified":"2026-04-25T04:17:31.326587Z","published":"2023-11-14T20:48:48.076Z","related":["CGA-x76w-hpmc-h6v8","SUSE-SU-2024:0577-1","openSUSE-SU-2024:13465-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/47xxx/CVE-2023-47627.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-444"]},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00002.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FUSJVQ7OQ55RWL4XAX2F5EZ73N4ZSH6U/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VDKQ6HM3KNDU4OQI476ZWT4O7DMSIT35/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WQYQL6WV535EEKSNH7KRARLLMOW5WXDM/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/47xxx/CVE-2023-47627.json"},{"type":"ADVISORY","url":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gfw2-4jvh-wgfg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-47627"},{"type":"FIX","url":"https://github.com/aio-libs/aiohttp/commit/d5c12ba890557a575c313bb3017910d7616fce3d"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/aio-libs/aiohttp","events":[{"introduced":"0"},{"fixed":"996de2629ef6b4c2934a7c04dfd49d0950d4c43b"}]}],"versions":["0.15.2","0.8.2","1.3.0","2.0.0","2.0.0rc1","4v0.21.6","v.0.6.5","v0.1","v0.10.0","v0.10.1","v0.11.0","v0.12.0","v0.13.0","v0.13.1","v0.14.0","v0.14.1","v0.14.2","v0.14.3","v0.14.4","v0.15.0","v0.15.1","v0.15.2","v0.15.3","v0.16.0","v0.16.1","v0.16.2","v0.16.3","v0.17.0","v0.18.0","v0.19.0","v0.2","v0.20.0","v0.20.1","v0.21.0","v0.22.0","v0.22.0b0","v0.22.0b1","v0.22.0b2","v0.22.0b3","v0.22.0b4","v0.22.0b5","v0.22.0b6","v0.22.1","v0.3","v0.4","v0.4.1","v0.4.2","v0.5.0","v0.6.1","v0.6.2","v0.6.3","v0.6.4","v0.7.0","v0.7.1","v0.7.2","v0.7.3","v0.8.0","v0.8.1","v0.8.3","v0.8.4","v0.9.0","v0.9.1","v0.9.2","v1.0.0","v1.0.1","v1.1.0","v1.1.1","v1.2.0","v2.1.0","v2.2.0","v2.3.0","v2.3.0a1","v2.3.0a2","v2.3.0a3","v2.3.0a4","v3.0.0b0","v3.0.0b1","v3.0.0b2","v3.0.0b3","v3.0.0b4","v3.1.0","v3.2.0","v3.4.0","v3.4.0a0","v3.4.0a3","v3.4.0b1","v3.4.0b2","v3.5.0","v3.5.0a1","v3.5.0b1","v3.5.0b2","v3.5.0b3","v3.5.1","v3.5.2","v3.5.3","v3.5.4","v3.6.0","v3.6.0a0","v3.6.0a1","v3.6.0a10","v3.6.0a11","v3.6.0a12","v3.6.0a2","v3.6.0a3","v3.6.0a4","v3.6.0a5","v3.6.0a6","v3.6.0a7","v3.6.0a8","v3.6.0a9","v3.6.0b0","v3.6.1","v3.6.1b3","v3.6.1b4","v3.6.2","v3.6.2a1","v3.6.2a2","v3.7.0","v3.7.0b0","v3.7.0b1","v3.7.1","v3.8.0","v3.8.1","v3.8.2a0","v3.8.4","v3.8.5"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-47627.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}