{"answers":{"affected":"3 open source packages ship an affected version, including aiohttp. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-47265 in the wild and no public exploit code.","fix":"Upgrade aiohttp to 3.14.0 or later.","what":"CVE-2026-47265 is a medium-severity vulnerability in aio-libs aiohttp, published on 2 Jun 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-2026-47265 and fix it if it is affected.\n\nWhat it is: CVE-2026-47265 is a medium-severity vulnerability in aio-libs aiohttp, published on 2 Jun 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-2026-47265 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- aiohttp (PyPI): affected all versions; fixed in 3.14.0\n- aiohttp (PyPI): affected all versions; fixed in 3.14.0\n- aiohttp (PyPI): affected all versions; fixed in 3.14.0\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-2026-47265/ (Markdown: https://insights.sbomify.com/CVE-2026-47265/index.md)","id":"CVE-2026-47265","markdown":"https://insights.sbomify.com/CVE-2026-47265/index.md","name":"CVE-2026-47265","record":{"aliases":["AZL-89333","CLEANSTART-2026-IS85221","CLEANSTART-2026-MJ80904","CLSA-2026-1781830554","DEBIAN-CVE-2026-47265","ECHO-9113-79e2-ca65","GHSA-hg6j-4rv6-33pg","MINI-3qx6-f9v4-cm5f","MINI-46cp-3mh2-pf8v","MINI-5w3v-6m3h-87rp","MINI-89hc-q244-7227","MINI-8h2r-56mc-wh5m","MINI-cqg6-55vh-344m","MINI-h3xf-2fp6-p8r7","MINI-m92c-q42m-2j54","MINI-mx9x-cjhh-q5fc","MINI-pgv3-38xq-rrxp","MINI-phjf-vgw7-7m3q","MINI-qwcv-j62w-f335","MINI-qxjm-g835-4rgp","MINI-r7hw-pxwf-qm2m","MINI-v4j3-4rp5-vh6c","MINI-vmg2-2rr6-9rhm","PYSEC-2026-2105","ROOT-APP-PYPI-CVE-2026-47265","UBUNTU-CVE-2026-47265"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Python HTTP library","requires_auth":"none","summary":"Attackers can steal sensitive cookies from per-request HTTP calls if they control a cross-origin redirect, affecting developers using the aiohttp library.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"aiohttp","vendor":"aiohttp"}],"cvss":{"score":6.6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U","version":"4.0"},"cwes":[{"id":"CWE-346","name":"Origin Validation Error"}],"description":"AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, cookies set with the `cookies` parameter on requests are sent after following a cross-origin redirect. If a developer uses the `cookies` parameter on a per-request basis then sensitive data might be leaked to an attacker if they manage to control a redirect. Version 3.14.0 patches the issue. If unable to upgrade, using a `Cookie` header in the `headers` parameter is not vulnerable.","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 vulnerable to cross-origin redirect with per-request cookies","id":"CVE-2026-47265","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"Formie: Unauthenticated front-end submission editing can overwrite existing submissions","id":"CVE-2026-47266"},"packages":[{"ecosystem":"PyPI","fixed":["3.14.0"],"introduced":["0"],"last_affected":[],"package":"aiohttp","purl":null,"source":"GHSA-hg6j-4rv6-33pg"},{"ecosystem":"PyPI","fixed":["3.14.0"],"introduced":["0"],"last_affected":[],"package":"aiohttp","purl":"pkg:pypi/aiohttp","source":"GHSA-hg6j-4rv6-33pg"},{"ecosystem":"PyPI","fixed":["3.14.0"],"introduced":["0"],"last_affected":[],"package":"aiohttp","purl":"pkg:pypi/aiohttp","source":"PYSEC-2026-2105"}],"prev":{"headline":"Discourse: Don't leak restricted tag group names via tag info","id":"CVE-2026-47264"},"products":["aiohttp"],"published":"2026-06-02","related":[{"cvss_score":8.7,"headline":"aiohttp memory leak when middleware is enabled when requesting a resource with a non-allowed method","id":"CVE-2024-52303","kev_date_added":null,"published":"2024-11-18"},{"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":"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":"2026-06-03","vendors":["aio-libs"]},"summary":"Attackers can steal sensitive cookies from per-request HTTP calls if they control a cross-origin redirect, affecting developers using the aiohttp library.","url":"https://insights.sbomify.com/CVE-2026-47265/"}