{"answers":{"affected":"3 open source packages ship an affected version, including aiohttp. It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-52303 in the wild and no public exploit code.","fix":"Upgrade aiohttp to 3.10.11 or later.","what":"CVE-2024-52303 is a high-severity denial of service vulnerability in aio-libs aiohttp, published on 18 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-52303 and fix it if it is affected.\n\nWhat it is: CVE-2024-52303 is a high-severity denial of service vulnerability in aio-libs aiohttp, published on 18 Nov 2024. 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-2024-52303 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- aiohttp (PyPI): affected from 3.10.6; fixed in 3.10.11\n- aiohttp (PyPI): affected from 3.10.6; fixed in 3.10.11\n- aiohttp (PyPI): affected from 3.10.6; fixed in 3.10.11\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-2024-52303/ (Markdown: https://insights.sbomify.com/CVE-2024-52303/index.md)","id":"CVE-2024-52303","markdown":"https://insights.sbomify.com/CVE-2024-52303/index.md","name":"CVE-2024-52303","record":{"aliases":["CLEANSTART-2026-HK21163","CLEANSTART-2026-PZ91840","DEBIAN-CVE-2024-52303","GHSA-27mf-ghqm-j3j8","PYSEC-2026-1096","openSUSE-SU-2024:14556-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Python HTTP library","requires_auth":"none","summary":"An attacker can exhaust server memory by sending many requests with non-allowed methods when middleware is enabled, causing denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"aiohttp","vendor":"aiohttp"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-772","name":"Missing Release of Resource after Effective Lifetime"}],"description":"aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In versions starting with 3.10.6 and prior to 3.10.11, a memory leak can occur when a request produces a MatchInfoError. This was caused by adding an entry to a cache on each request, due to the building of each MatchInfoError producing a unique cache entry. An attacker may be able to exhaust the memory resources of a server by sending a substantial number (100,000s to millions) of such requests. Those who use any middlewares with aiohttp.web should upgrade to version 3.10.11 to receive a patch.","ecosystems":["PyPI","openSUSE:Tumbleweed"],"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 memory leak when middleware is enabled when requesting a resource with a non-allowed method","id":"CVE-2024-52303","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"denial_of_service","year":"2024"},"n_packages":4,"n_references":2,"next":{"headline":"aiohttp vulnerable to request smuggling due to incorrect parsing of chunk extensions","id":"CVE-2024-52304"},"packages":[{"ecosystem":"PyPI","fixed":["3.10.11"],"introduced":["3.10.6"],"last_affected":[],"package":"aiohttp","purl":null,"source":"GHSA-27mf-ghqm-j3j8"},{"ecosystem":"PyPI","fixed":["3.10.11"],"introduced":["3.10.6"],"last_affected":[],"package":"aiohttp","purl":"pkg:pypi/aiohttp","source":"GHSA-27mf-ghqm-j3j8"},{"ecosystem":"PyPI","fixed":["3.10.11"],"introduced":["3.10.6"],"last_affected":[],"package":"aiohttp","purl":"pkg:pypi/aiohttp","source":"PYSEC-2026-1096"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["3.11.9-1.1"],"introduced":["0"],"last_affected":[],"package":"python-aiohttp","purl":"pkg:rpm/opensuse/python-aiohttp\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:14556-1"}],"prev":{"headline":"common-user-management Unrestricted File Upload Leading to Remote Code Execution (RCE)","id":"CVE-2024-52302"},"products":["aiohttp"],"published":"2024-11-18","related":[{"cvss_score":7.5,"headline":"AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb","id":"CVE-2025-69223","kev_date_added":null,"published":"2026-01-05"},{"cvss_score":7.5,"headline":"Denial of service when trying to parse malformed POST requests in aiohttp","id":"CVE-2024-30251","kev_date_added":null,"published":"2024-05-02"},{"cvss_score":7.2,"headline":"aiohttp's ClientSession is vulnerable to CRLF injection via version","id":"CVE-2023-49081","kev_date_added":null,"published":"2023-11-30"},{"cvss_score":6.9,"headline":"AIOHTTP: Uncapped memory usage possible through aiohttp allowing unlimited trailer headers","id":"CVE-2026-22815","kev_date_added":null,"published":"2026-04-01"},{"cvss_score":6.6,"headline":"AIOHTTP: HTTP/1 Pipelined Requests Queue Without Limit","id":"CVE-2026-54273","kev_date_added":null,"published":"2026-06-22"},{"cvss_score":6.6,"headline":"AIOHTTP: Incomplete websocket frame payloads bypass memory limits","id":"CVE-2026-54274","kev_date_added":null,"published":"2026-06-22"}],"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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-11-19","vendors":["aio-libs"]},"summary":"An attacker can exhaust server memory by sending many requests with non-allowed methods when middleware is enabled, causing denial of service.","url":"https://insights.sbomify.com/CVE-2024-52303/"}