CVE-2026-128130

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-128130", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-11-12T22:42:47.032Z", "datePublished": "2026-11-13T20:35:38.626Z", "dateUpdated": "2026-11-13T20:35:38.626Z"}, "containers": {"cna": {"title": "AIOHTTP: Pure-Python parser request replay and buffer growth behind a declined upgrade", "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "lang": "en", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-835", "lang": "en", "description": "CWE-835: Loop with Unreachable Exit Condition", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.3, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-28qf-cpwq-vmc2", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-28qf-cpwq-vmc2"}, {"name": "https://github.com/aio-libs/aiohttp/pull/13356", "tags": ["x_refsource_MISC"], "url": "https://github.com/aio-libs/aiohttp/pull/13356"}, {"name": "https://github.com/aio-libs/aiohttp/pull/13360", "tags": ["x_refsource_MISC"], "url": "https://github.com/aio-libs/aiohttp/pull/13360"}, {"name": "https://github.com/aio-libs/aiohttp/commit/47babd8c23ca79e2bae6cc8dcb5752b61e369fc7", "tags": ["x_refsource_MISC"], "url": "https://github.com/aio-libs/aiohttp/commit/47babd8c23ca79e2bae6cc8dcb5752b61e369fc7"}, {"name": "https://github.com/aio-libs/aiohttp/commit/72eaa429cf89b1e20212590f3e704444239569fb", "tags": ["x_refsource_MISC"], "url": "https://github.com/aio-libs/aiohttp/commit/72eaa429cf89b1e20212590f3e704444239569fb"}, {"name": "https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4", "tags": ["x_refsource_MISC"], "url": "https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4"}], "affected": [{"vendor": "aio-libs", "product": "aiohttp", "versions": [{"version": "< 3.14.4", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-13T20:35:38.626Z"}, "descriptions": [{"lang": "en", "value": "AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, when the pipelined request queue is full, the pure-Python parser stores the unparsed remainder internally and also returns the same data to its caller. After a handler declines an upgrade request, the caller feeds the remainder back to the parser, causing the buffer to grow with each handled request and dispatching already-handled requests to the application again. The issue affects deployments using AIOHTTP_NO_EXTENSIONS or otherwise running without the standard C-extension wheel, and can cause excessive memory use and repeated request processing. This issue is fixed in version 3.14.4."}], "source": {"advisory": "GHSA-28qf-cpwq-vmc2", "discovery": "UNKNOWN"}}}}

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