CVE-2024-30251highCWE-835

CVE-2024-30251: high-severity vulnerability in aio-libs aiohttp

Denial of service when trying to parse malformed POST requests in aiohttp

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 1.1%
exploitation probability
1.1%top 36% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
aio-libs · aiohttp
Related CVEs — aio-libs aiohttp

In the same product, most dangerous first.

CVE-2024-23334MEDIUMaiohttp.web.static(follow_symlinks=True) is vulnerable to directory traversalEPSS 76.9%CVE-2021-21330LOWOpen redirect vulnerability in aiohttpEPSS 1.9%CVE-2023-37276MEDIUMaiohttp vulnerable to HTTP request smugglingEPSS 1.3%CVE-2024-23829MEDIUMaiohttp's HTTP parser (the python one, not llhttp) still overly lenient about separatorsEPSS 1.0%CVE-2023-49082MEDIUMaiohttp's ClientSession is vulnerable to CRLF injection via methodEPSS 0.9%CVE-2023-49081HIGHaiohttp's ClientSession is vulnerable to CRLF injection via versionEPSS 0.9%
References
https://github.com/aio-libs/aiohttp/commit/7eecdff163ccf029fbb1ddc9de4169d4aaeb6597https://github.com/aio-libs/aiohttp/commit/cebe526b9c34dc3a3da9140409db63014bc4cf19https://github.com/aio-libs/aiohttp/commit/f21c6f2ca512a026ce7f0f6c6311f62d6a638866https://github.com/aio-libs/aiohttp/security/advisories/GHSA-5m98-qgg9-wh84https://lists.debian.org/debian-lts-announce/2025/02/msg00002.htmlhttp://www.openwall.com/lists/oss-security/2024/05/02/4