GHSA-6CJC-53GC-5RQM

Vulnerability from github – Published: 2026-10-20 19:57 – Updated: 2026-10-20 19:57
VLAI
Summary
AIOHTTP: Connector pool exhaustion via Max-Age overflow
Details

Summary

An overflow in Max-Age processing can skip closing a connection.

Impact

An attacker may be able to exhaust the connection pool temporarily, until garbage collection resolves the connections.

Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.14.3"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "aiohttp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-111065"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-20T19:57:24Z",
    "nvd_published_at": "2026-10-19T17:17:03Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nAn overflow in Max-Age processing can skip closing a connection.\n\n### Impact\n\nAn attacker may be able to exhaust the connection pool temporarily, until garbage collection resolves the connections.",
  "id": "GHSA-6cjc-53gc-5rqm",
  "modified": "2026-10-20T19:57:24Z",
  "published": "2026-10-20T19:57:24Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6cjc-53gc-5rqm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111065"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/commit/9dd8eaf4e31f1237ef2c1574a8c82a739fca5805"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/aio-libs/aiohttp"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "AIOHTTP: Connector pool exhaustion via Max-Age overflow"
}



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