{"id":"CVE-2024-52304","state":"PUBLISHED","title":"aiohttp vulnerable to request smuggling due to incorrect parsing of chunk extensions","description":"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.","publishedAt":"2024-11-18T20:12:48.612Z","updatedAt":"2025-11-03T20:45:25.646Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["aio-libs aiohttp"],"affected":[{"vendor":"aio-libs","product":"aiohttp","versions":[{"version":"< 3.10.11","status":"affected"}]}],"references":["https://github.com/aio-libs/aiohttp/security/advisories/GHSA-8495-4g3g-x7pr","https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71","https://lists.debian.org/debian-lts-announce/2025/02/msg00002.html"],"weaknesses":["CWE-444"],"ingestedAt":"2026-10-29T20:08:04.920Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/52xxx/CVE-2024-52304.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-52304","state":"PUBLISHED","datePublished":"2024-11-18T20:12:48.612Z","dateUpdated":"2025-11-03T20:45:25.646Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2024-11-06T19:00:26.396Z"},"containers":{"cna":{"title":"aiohttp vulnerable to request smuggling due to incorrect parsing of chunk extensions","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"aio-libs","product":"aiohttp","versions":[{"version":"< 3.10.11","status":"affected"}]}],"references":[{"url":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-8495-4g3g-x7pr","name":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-8495-4g3g-x7pr","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71","name":"https://github.com/aio-libs/aiohttp/commit/259edc369075de63e6f3a4eaade058c62af0df71","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-444","lang":"en","description":"CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2024-11-18T20:12:48.612Z"},"source":{"advisory":"GHSA-8495-4g3g-x7pr","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"python","product":"aiohttp","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"3.10.11","versionType":"custom"}],"cpes":["cpe:2.3:a:python:aiohttp:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-11-19T15:38:44.530052Z","id":"CVE-2024-52304","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-11-21T14:07:39.914Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00002.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T20:45:25.646Z"}}]}}}