{"id":"CVE-2026-111065","state":"PUBLISHED","title":"AIOHTTP: Connector pool exhaustion via Max-Age overflow","description":"AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Max-Age processing can overflow and skip closing a connection. An attacker can consequently exhaust the connection pool temporarily until garbage collection resolves the connections. This issue is fixed in version 3.14.4.","publishedAt":"2026-10-19T16:57:26.696Z","updatedAt":"2026-10-19T17:35:52.967Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["aio-libs aiohttp"],"affected":[{"vendor":"aio-libs","product":"aiohttp","versions":[{"version":"< 3.14.4","status":"affected"}]}],"references":["https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6cjc-53gc-5rqm","https://github.com/aio-libs/aiohttp/commit/9dd8eaf4e31f1237ef2c1574a8c82a739fca5805","https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4"],"weaknesses":["CWE-770"],"ingestedAt":"2026-10-29T20:10:33.477Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/111xxx/CVE-2026-111065.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-111065","state":"PUBLISHED","datePublished":"2026-10-19T16:57:26.696Z","dateUpdated":"2026-10-19T17:35:52.967Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-15T12:47:13.665Z"},"containers":{"cna":{"title":"AIOHTTP: Connector pool exhaustion via Max-Age overflow","descriptions":[{"lang":"en","value":"AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Max-Age processing can overflow and skip closing a connection. An attacker can consequently exhaust the connection pool temporarily until garbage collection resolves the connections. This issue is fixed in version 3.14.4."}],"affected":[{"vendor":"aio-libs","product":"aiohttp","versions":[{"version":"< 3.14.4","status":"affected"}]}],"references":[{"url":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6cjc-53gc-5rqm","name":"https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6cjc-53gc-5rqm","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/aio-libs/aiohttp/commit/9dd8eaf4e31f1237ef2c1574a8c82a739fca5805","name":"https://github.com/aio-libs/aiohttp/commit/9dd8eaf4e31f1237ef2c1574a8c82a739fca5805","tags":["x_refsource_MISC"]},{"url":"https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4","name":"https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-19T16:57:26.696Z"},"source":{"advisory":"GHSA-6cjc-53gc-5rqm","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-19T17:34:44.525014Z","id":"CVE-2026-111065","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":"2026-10-19T17:35:52.967Z"}}]}}}