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BREW-BTCLI-CVE-2026-69243 (GHSA-MFX4-HV73-Q22V)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:38 – Updated: 2026-09-09 23:44 – Source website
VLAI
Summary
AIOHTTP: HTTP request smuggling via WebSocket upgrade
Details

Summary

The HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades.

Impact

If using the server-side component, it may be possible for an attacker to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. AIOHTT is unaware of any public exploit code.

Patch: https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98

Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": null,
        "range_state": "affected",
        "resource": "aiohttp",
        "resource_purl": "pkg:pypi/aiohttp@3.14.1",
        "upstream_fixed_in": "3.14.2"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "btcli",
        "purl": "pkg:brew/btcli"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/aiohttp@3.14.1",
        "name": "aiohttp",
        "resource": "aiohttp",
        "strategy": "registry",
        "subject_version": "3.14.1"
      }
    ]
  },
  "details": "### Summary\n\nThe HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades.\n\n### Impact\n\nIf using the server-side component, it may be possible for an attacker to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. AIOHTT is unaware of any public exploit code.\n\n---\n\nPatch: https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98",
  "id": "BREW-btcli-CVE-2026-69243",
  "modified": "2026-09-09T23:44:39Z",
  "published": "2026-08-13T16:38:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-mfx4-hv73-q22v"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/pull/13017"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/commit/6ae358f0983c3f4d6f67692b2f8e65dc8e091c98"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/aio-libs/aiohttp"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/releases/tag/v3.14.2"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "AIOHTTP: HTTP request smuggling via WebSocket upgrade",
  "upstream": [
    "GHSA-mfx4-hv73-q22v",
    "CVE-2026-69243",
    "PYSEC-2026-3546"
  ]
}



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