{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "11.0.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "09c88ca2a36af198ebcc85413ce2fa92ff555093"
            }
          ],
          "repo": "https://github.com/domainaware/parsedmarc",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-43qf-f35w-2x4r"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-409"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82520.json"
  },
  "details": "parsedmarc before 11.0.1 decompresses gzip and ZIP attachments in a single unbounded read with no limit on decompressed output size. Because parsedmarc automatically processes incoming DMARC report emails without user interaction, an unauthenticated remote attacker can send a crafted email with a highly compressed attachment to the monitored mailbox, causing the parsedmarc process to allocate memory proportional to the uncompressed size and exhaust available RAM.",
  "id": "CVE-2026-82520",
  "modified": "2026-09-06T03:30:29.065852518Z",
  "published": "2026-09-03T20:39:00.723Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82520.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/domainaware/parsedmarc/security/advisories/GHSA-43qf-f35w-2x4r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82520"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/parsedmarc-zip-bomb-dos-via-compressed-email-attachments"
    },
    {
      "type": "FIX",
      "url": "https://github.com/domainaware/parsedmarc/releases/tag/11.0.1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/domainaware/parsedmarc"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "parsedmarc \u003c 11.0.1 Zip Bomb DoS via Compressed Email Attachments"
}