CVE-2023-37276

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Summary

CVECVE-2023-37276
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-07-19 20:15:00 UTC
Updated2023-07-28 15:55:00 UTC
Descriptionaiohttp 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.

Risk And Classification

Problem Types: CWE-444

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Aiohttp Project Aiohttp All All All All

References

ReferenceSourceLinkTags
HackerOne MISC hackerone.com
github.com/aio-libs/aiohttp/blob/v3.8.4/.gitmodules MISC github.com
aiohttp.web.Application vulnerable to HTTP request smuggling via llhttp HTTP request parser · Advisory · aio-libs/aiohttp · GitHub MISC github.com
Fix bump llhttp to v8.1.1 (#7367) (#7377) · aio-libs/aiohttp@9337fb3 · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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