{"id":"CVE-2024-52304","summary":"aiohttp vulnerable to request smuggling due to incorrect parsing of chunk extensions","details":"aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.10.11, the Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions. If a pure Python version of aiohttp is installed (i.e. without the usual C extensions) or `AIOHTTP_NO_EXTENSIONS` is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. Version 3.10.11 fixes the issue.","aliases":["GHSA-8495-4g3g-x7pr"],"modified":"2026-05-15T04:11:57.929487439Z","published":"2024-11-18T20:12:48.612Z","related":["CGA-xhpq-xjpc-gfgp","SUSE-SU-2024:4077-1","SUSE-SU-2024:4110-1"],"database_specific":{"cwe_ids":["CWE-444"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/52xxx/CVE-2024-52304.json"},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00002.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/52xxx/CVE-2024-52304.json"},{"type":"ADVISORY","url":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-8495-4g3g-x7pr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-52304"},{"type":"FIX","url":"https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71"}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}]}