{"cve":"CVE-2026-111066","nvd":{"published":"2026-10-19T17:17:03.637","modified":"2026-10-20T17:17:29.313","status":"Undergoing Analysis","description":"AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. From 2.0.0 until 3.14.4, multipart request processing can retain an unbounded number of open file descriptors. An unauthenticated attacker can consequently exhaust file descriptors with specially crafted multipart requests when a handler uses Request.post(). This issue is fixed in version 3.14.4.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.2},"cvss_v3":null,"cwes":["CWE-400","CWE-770"],"references":["https://github.com/aio-libs/aiohttp/commit/2d94633b7f1b4c1ba07d647b629a8440652b2d09","https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4","https://github.com/aio-libs/aiohttp/security/advisories/GHSA-9xw5-w5jj-pvcg"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:56:58.798400159+00:00"},"epss":{"cve":"CVE-2026-111066","score":0.00412,"percentile":0.35125,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-9xw5-w5jj-pvcg","url":"https://osv.dev/vulnerability/GHSA-9xw5-w5jj-pvcg","summary":"AIOHTTP: File descriptor exhaustion in multipart requests","modified":"2026-10-20T20:00:04.692319554Z","packages":[{"ecosystem":"PyPI","name":"aiohttp","purl":"pkg:pypi/aiohttp","ranges":[">=2.0.0 <3.14.4"],"fixed":["3.14.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}