---
schema_version: '1.0'
id: security-20260711-ae9caf
url: https://osv.dev/vulnerability/GHSA-xcgm-r5h9-7989
url_hash: ae9caf26914dc182660f358cfab1cf4a282e8fd92ec0c2c8def8e76b9619fb27
canonical_url: https://osv.dev/vulnerability/GHSA-xcgm-r5h9-7989
source: osv:ghsa
category: security/library
category_raw: cve/library
region: null
tags:
- cve
- CVE-2026-54274
- GHSA-xcgm-r5h9-7989
- severity:CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
- aiohttp
- PyPI
lang: en
published_at: '2026-06-15T20:11:22Z'
fetched_at: '2026-07-11T06:37:17Z'
updated_at: '2026-07-11T06:38:28Z'
status: published
content_hash: caf95307f5297ef8696ea07750d4f89503ca088df1ffd15bf245430bd3820848
license_note: full
summary: 'aiohttp: Incomplete websocket frame payloads bypass memory limits'
summary_source: rss
summary_en: 'aiohttp: Incomplete websocket frame payloads bypass memory limits'
entities:
- name: monitoring framework
  type: method
key_facts: []
related: []
related_auto: []
title: 'CVE-2026-54274: aiohttp: Incomplete websocket frame payloads bypass memory
  limits'
---

# CVE-2026-54274: aiohttp: Incomplete websocket frame payloads bypass memory limits

## TL;DR
aiohttp: Incomplete websocket frame payloads bypass memory limits

## Key Points
- cve / CVE-2026-54274 / GHSA-xcgm-r5h9-7989 / severity:CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U / aiohttp / PyPI

## Details
**Severity:** CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
**Advisory:** GHSA-xcgm-r5h9-7989 (CVE-2026-54274)

**Affected (your watchlist):**
- `PyPI:aiohttp` 3.13.3 → fixed in 3.14.1 [docker/docker-strands]

**Details:**
### Summary

If an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use.

### Impact

If a web application has WebSocket endpoints, it may be possible for an attacker to execute a DoS attack through excessive memory use.

-----

Patch: https://github.com/aio-libs/aiohttp/commit/14b6ee851fb16ec199acb950de0c82d476799e7d

**References:**
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-xcgm-r5h9-7989
- https://github.com/aio-libs/aiohttp

_Data: OSV.dev (upstream: ghsa) — https://osv.dev/vulnerability/GHSA-xcgm-r5h9-7989_

## Source
元記事: [CVE-2026-54274: aiohttp: Incomplete websocket frame payloads bypass memory limits](https://osv.dev/vulnerability/GHSA-xcgm-r5h9-7989) — published 2026-06-15T20:11:22Z