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Total 10 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2025-69223 3 Aio-libs, Aio-libs Project, Aiohttp 4 Aiohttp Session, Aiohttp, Aio-libs and 1 more 2026-01-06 7.5 High
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a zip bomb to be used to execute a DoS against the AIOHTTP server. An attacker may be able to send a compressed request that when decompressed by AIOHTTP could exhaust the host's memory. This issue is fixed in version 3.13.3.
CVE-2025-69224 3 Aio-libs, Aio-libs Project, Aiohttp 4 Aiohttp Session, Aiohttp, Aio-libs and 1 more 2026-01-06 5.4 Medium
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below of the Python HTTP parser may allow a request smuggling attack with the presence of non-ASCII characters. If a pure Python version of AIOHTTP is installed (i.e. without the usual C extensions) or AIOHTTP_NO_EXTENSIONS is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. This issue is fixed in version 3.13.3.
CVE-2025-69226 3 Aio-libs, Aio-libs Project, Aiohttp 4 Aiohttp Session, Aiohttp, Aio-libs and 1 more 2026-01-06 5.3 Medium
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below enable an attacker to ascertain the existence of absolute path components through the path normalization logic for static files meant to prevent path traversal. If an application uses web.static() (not recommended for production deployments), it may be possible for an attacker to ascertain the existence of path components. This issue is fixed in version 3.13.3.
CVE-2025-69225 3 Aio-libs, Aio-libs Project, Aiohttp 4 Aiohttp Session, Aiohttp, Aio-libs and 1 more 2026-01-06 5.4 Medium
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below contain parser logic which allows non-ASCII decimals to be present in the Range header. There is no known impact, but there is the possibility that there's a method to exploit a request smuggling vulnerability. This issue is fixed in version 3.13.3.
CVE-2025-69227 3 Aio-libs, Aio-libs Project, Aiohttp 4 Aiohttp Session, Aiohttp, Aio-libs and 1 more 2026-01-06 5.4 Medium
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow for an infinite loop to occur when assert statements are bypassed, resulting in a DoS attack when processing a POST body. If optimizations are enabled (-O or PYTHONOPTIMIZE=1), and the application includes a handler that uses the Request.post() method, then an attacker may be able to execute a DoS attack with a specially crafted message. This issue is fixed in version 3.13.3.
CVE-2025-69228 3 Aio-libs, Aio-libs Project, Aiohttp 4 Aiohttp Session, Aiohttp, Aio-libs and 1 more 2026-01-06 5.4 Medium
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a request to be crafted in such a way that an AIOHTTP server's memory fills up uncontrollably during processing. If an application includes a handler that uses the Request.post() method, an attacker may be able to freeze the server by exhausting the memory. This issue is fixed in version 3.13.3.
CVE-2025-69229 3 Aio-libs, Aio-libs Project, Aiohttp 4 Aiohttp Session, Aiohttp, Aio-libs and 1 more 2026-01-06 5.4 Medium
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. In versions 3.13.2 and below, handling of chunked messages can result in excessive blocking CPU usage when receiving a large number of chunks. If an application makes use of the request.read() method in an endpoint, it may be possible for an attacker to cause the server to spend a moderate amount of blocking CPU time (e.g. 1 second) while processing the request. This could potentially lead to DoS as the server would be unable to handle other requests during that time. This issue is fixed in version 3.13.3.
CVE-2025-69230 3 Aio-libs, Aio-libs Project, Aiohttp 4 Aiohttp Session, Aiohttp, Aio-libs and 1 more 2026-01-06 5.4 Medium
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. In versions 3.13.2 and below, reading multiple invalid cookies can lead to a logging storm. If the cookies attribute is accessed in an application, then an attacker may be able to trigger a storm of warning-level logs using a specially crafted Cookie header. This issue is fixed in 3.13.3.
CVE-2024-30251 3 Aio-libs Project, Aiohttp, Redhat 4 Aiohttp, Aiohttp, Ansible Automation Platform and 1 more 2025-11-03 7.5 High
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In affected versions an attacker can send a specially crafted POST (multipart/form-data) request. When the aiohttp server processes it, the server will enter an infinite loop and be unable to process any further requests. An attacker can stop the application from serving requests after sending a single request. This issue has been addressed in version 3.9.4. Users are advised to upgrade. Users unable to upgrade may manually apply a patch to their systems. Please see the linked GHSA for instructions.
CVE-2023-37276 3 Aio-libs Project, Aiohttp, Redhat 5 Aiohttp, Aiohttp, Rhui and 2 more 2024-11-21 5.3 Medium
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. aiohttp v3.8.4 and earlier are bundled with llhttp v6.0.6. Vulnerable code is used by aiohttp for its HTTP request parser when available which is the default case when installing from a wheel. This vulnerability only affects users of aiohttp as an HTTP server (ie `aiohttp.Application`), you are not affected by this vulnerability if you are using aiohttp as an HTTP client library (ie `aiohttp.ClientSession`). Sending a crafted HTTP request will cause the server to misinterpret one of the HTTP header values leading to HTTP request smuggling. This issue has been addressed in version 3.8.5. Users are advised to upgrade. Users unable to upgrade can reinstall aiohttp using `AIOHTTP_NO_EXTENSIONS=1` as an environment variable to disable the llhttp HTTP request parser implementation. The pure Python implementation isn't vulnerable.