CVE-2026-123817
— UNSCOREDpublic exploit availablePublished 2026-11-09 · Updated 2026-11-09
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the WebSocket reader retains one bytes object for each transport read while reassembling an incomplete frame. A malicious peer can split a frame into many tiny reads so per-object overhead substantially exceeds the payload bytes allowed by max_msg_size. The condition affects a server receiving frames from a malicious client and a client receiving frames from a malicious server, and can cause excessive memory consumption or denial of service. This issue is fixed in version 3.14.4.
Weaknesses
CWE-770
Public exploit & PoC references
- https://github.com/aio-libs/aiohttp/commit/09bcaa73ff084a0c539bbf16a0a78743acb7141f
- https://github.com/aio-libs/aiohttp/commit/6a4f6682817839313b04b8e5cea2b39c1a88ab4f
- https://github.com/aio-libs/aiohttp/pull/13352
- https://github.com/aio-libs/aiohttp/pull/13612
- https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-2g87-pp6c-29x5
All references
- https://github.com/aio-libs/aiohttp/commit/09bcaa73ff084a0c539bbf16a0a78743acb7141f
- https://github.com/aio-libs/aiohttp/commit/6a4f6682817839313b04b8e5cea2b39c1a88ab4f
- https://github.com/aio-libs/aiohttp/pull/13352
- https://github.com/aio-libs/aiohttp/pull/13612
- https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-2g87-pp6c-29x5
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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