CVE-2023-49081

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Improper validation made it possible for an attacker to modify the HTTP request (e.g. to insert a new header) or create a new HTTP request if the attacker controls the HTTP version. The vulnerability only occurs if the attacker can control the HTTP version of the request. This issue has been patched in version 3.9.0.

• CWE-20

• https://gist.github.com/jnovikov/184afb593d9c2114d77f508e0ccd508eExploit, Third Party Advisory
• https://github.com/aio-libs/aiohttp/commit/1e86b777e61cf4eefc7d92fa57fa19dcc676013b
• https://github.com/aio-libs/aiohttp/pull/7835/files
• https://github.com/aio-libs/aiohttp/security/advisories/GHSA-q3qx-c6g2-7pw2Exploit, Vendor Advisory
• https://gist.github.com/jnovikov/184afb593d9c2114d77f508e0ccd508eExploit, Third Party Advisory
• https://github.com/aio-libs/aiohttp/commit/1e86b777e61cf4eefc7d92fa57fa19dcc676013b
• https://github.com/aio-libs/aiohttp/pull/7835/files
• https://github.com/aio-libs/aiohttp/security/advisories/GHSA-q3qx-c6g2-7pw2Exploit, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2025/02/msg00002.html
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSYWMP64ZFCTC3VO6RY6EC6VSSMV6I3A/

Published

Nov 30, 2023

Last Modified

Jun 23, 2026

Status

Modified

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