Vulnerability from bitnami_vulndb
Published
2024-10-22 12:06
Modified
2025-11-06 13:25
Summary
Details

The email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special character. The wrong portion of an RFC2822 header is identified as the value of the addr-spec. In some applications, an attacker can bypass a protection mechanism in which application access is granted only after verifying receipt of e-mail to a specific domain (e.g., only @company.example.com addresses may be used for signup). This occurs in email/_parseaddr.py in recent versions of Python.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "python",
        "purl": "pkg:bitnami/python"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.8.20"
            },
            {
              "introduced": "3.10.0"
            },
            {
              "fixed": "3.10.15"
            },
            {
              "introduced": "3.11.0"
            },
            {
              "fixed": "3.11.10"
            },
            {
              "introduced": "3.12.0"
            },
            {
              "fixed": "3.12.6"
            },
            {
              "introduced": "3.9.0"
            },
            {
              "fixed": "3.9.20"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27043"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "The email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special character. The wrong portion of an RFC2822 header is identified as the value of the addr-spec. In some applications, an attacker can bypass a protection mechanism in which application access is granted only after verifying receipt of e-mail to a specific domain (e.g., only @company.example.com addresses may be used for signup). This occurs in email/_parseaddr.py in recent versions of Python.",
  "id": "BIT-python-2023-27043",
  "modified": "2025-11-06T13:25:46.476Z",
  "published": "2024-10-22T12:06:11.918Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://python.org"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/issues/102988"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZAEFSFZDNBNJPNOUTLG5COISGQDLMGV/"
    },
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    },
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    },
    {
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    },
    {
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    },
    {
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    },
    {
      "type": "WEB",
      "url": "https://python-security.readthedocs.io/vuln/email-parseaddr-realname.html"
    },
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      "url": "https://security.netapp.com/advisory/ntap-20230601-0003/"
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    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27043"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2025/Apr/8"
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    {
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      "url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00024.html"
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  "schema_version": "1.5.0"
}


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