GHSA-6MQ8-RVHQ-8WGG

Vulnerability from github – Published: 2026-01-05 22:58 – Updated: 2026-01-06 16:06
VLAI
Summary
AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb
Details

Summary

A zip bomb can be used to execute a DoS against the aiohttp server.

Impact

An attacker may be able to send a compressed request that when decompressed by aiohttp could exhaust the host's memory.

Patch: https://github.com/aio-libs/aiohttp/commit/2b920c39002cee0ec5b402581779bbaaf7c9138a

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.13.2"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "aiohttp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.13.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-69223"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-409",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-05T22:58:41Z",
    "nvd_published_at": "2026-01-05T22:15:53Z",
    "severity": "HIGH"
  },
  "details": "### Summary\nA zip bomb can be used to execute a DoS against the aiohttp server.\n\n### Impact\nAn attacker may be able to send a compressed request that when decompressed by aiohttp could exhaust the host\u0027s memory.\n\n------\n\nPatch: https://github.com/aio-libs/aiohttp/commit/2b920c39002cee0ec5b402581779bbaaf7c9138a",
  "id": "GHSA-6mq8-rvhq-8wgg",
  "modified": "2026-01-06T16:06:18Z",
  "published": "2026-01-05T22:58:41Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-6mq8-rvhq-8wgg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-69223"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aio-libs/aiohttp/commit/2b920c39002cee0ec5b402581779bbaaf7c9138a"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/aio-libs/aiohttp"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "AIOHTTP\u0027s HTTP Parser auto_decompress feature is vulnerable to zip bomb"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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