{"id":"CVE-2026-111750","revision":"3fab9dee25264b14a750fc232cb587cd","records":[{"revision":"3fab9dee25264b14a750fc232cb587cd","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-111750","aliases":[],"title":"AIOHTTP: Pure-Python parser request smuggling","description":"AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the pure Python parser accepts ambiguous HTTP request framing. An unauthenticated attacker can consequently smuggle requests when an application uses AIOHTTP_NO_EXTENSIONS or otherwise runs without a standard wheel and an intermediary interprets the framing differently. This issue is fixed in version 3.14.4.","state":0,"publishedAt":"2026-10-19T17:06:37.997+00:00","modifiedAt":"2026-10-19T17:06:37.997+00:00","affected":[{"ecosystem":"Vendor product","name":"aiohttp","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"aio-libs\",\n                    \"product\": \"aiohttp\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.14.4\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L","score":6.3,"severity":"MEDIUM"}],"references":["https://github.com/aio-libs/aiohttp/security/advisories/GHSA-pqxq-w44r-73xw","https://github.com/aio-libs/aiohttp/commit/9b27347e61454d9f8ca2055f4c67a37dee336e83","https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111750","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111750","identifiers":["CVE-2026-111750"]},"retained":false,"historicalAffected":[]}],"coverage":[]}