{"answers":{"affected":"2 open source packages ship an affected version, including aiohttp.","exploited":"There is no known exploitation of CVE-2026-111066 in the wild and no public exploit code.","fix":"Upgrade aiohttp to 3.14.4 or later.","what":"CVE-2026-111066 is a high-severity denial of service vulnerability in aio-libs aiohttp, published on 19 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-111066 and fix it if it is affected.\n\nWhat it is: CVE-2026-111066 is a high-severity denial of service vulnerability in aio-libs aiohttp, published on 19 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-111066 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- aiohttp (PyPI): affected from 2.0.0; fixed in 3.14.4\n- aiohttp (PyPI): affected from 2.0.0; fixed in 3.14.4\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-111066/ (Markdown: https://insights.sbomify.com/CVE-2026-111066/index.md)","id":"CVE-2026-111066","markdown":"https://insights.sbomify.com/CVE-2026-111066/index.md","name":"CVE-2026-111066","record":{"aliases":["AZL-109881","CLSA-2026-1792636819","CLSA-2026-1792740383","CLSA-2026-1792740391","CLSA-2026-1792742634","DEBIAN-CVE-2026-111066","ECHO-24ec-b983-f207","GHSA-9xw5-w5jj-pvcg","MINI-757c-9794-qxqh","MINI-jgw8-3xcq-c927","MINI-ppq8-xmwr-gmj9","ROOT-APP-PYPI-CVE-2026-111066","UBUNTU-CVE-2026-111066"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python HTTP library","requires_auth":"none","summary":"An unauthenticated attacker can exhaust file descriptors via crafted multipart requests, causing denial of service in applications using aiohttp.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":8.2,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"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.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"AIOHTTP: File descriptor exhaustion in multipart requests","id":"CVE-2026-111066","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"DesignSetGo \u003c= 2.11.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'tagName' Block Attribute","id":"CVE-2026-111068"},"packages":[{"ecosystem":"PyPI","fixed":["3.14.4"],"introduced":["2.0.0"],"last_affected":[],"package":"aiohttp","purl":null,"source":"GHSA-9xw5-w5jj-pvcg"},{"ecosystem":"PyPI","fixed":["3.14.4"],"introduced":["2.0.0"],"last_affected":[],"package":"aiohttp","purl":"pkg:pypi/aiohttp","source":"GHSA-9xw5-w5jj-pvcg"}],"prev":{"headline":"AIOHTTP: Connector pool exhaustion via Max-Age overflow","id":"CVE-2026-111065"},"products":["aiohttp"],"published":"2026-10-19","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-20","vendors":["aio-libs"]},"summary":"An unauthenticated attacker can exhaust file descriptors via crafted multipart requests, causing denial of service in applications using aiohttp.","url":"https://insights.sbomify.com/CVE-2026-111066/"}