CVE-2026-69244 | BDVDB-2026-354987 Detail

Description#

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigger a DoS in the client. The vulnerable path was error message construction in aiohttp/_http_parser.pyx, where an llhttp error-position pointer was used to build a snippet for malformed chunked responses and malformed request or response bytes at the buffer end. This issue is fixed in version 3.14.3.

Impact#

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Exploit#

History#

1. Version 12026-08-03Record published in the CVE List.
2. Version 22026-08-04Most recent update recorded in the CVE List.