Vulnerability 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.
Related Weaknesses (CWE)
References
- https://github.com/aio-libs/aiohttp/commit/49f65d54150397892f7bcc4aae887767d51c3
- https://github.com/aio-libs/aiohttp/pull/13223
- https://github.com/aio-libs/aiohttp/releases/tag/v3.14.3
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-cq5v-8q36-5273
FAQ
What is CVE-2026-69244?
CVE-2026-69244 is a documented vulnerability. 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 m...
How severe is CVE-2026-69244?
CVSS scoring is not yet available for CVE-2026-69244. Check NVD for updates.
Is there a patch for CVE-2026-69244?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.