Vulnerability from bitnami_vulndb
Published
2025-08-11 13:53
Modified
2025-12-04 12:07
Summary
Mishandling of comma during folding and unicode-encoding of email headers
Details

During an address list folding when a separating comma ends up on a folded line and that line is to be unicode-encoded then the separator itself is also unicode-encoded. Expected behavior is that the separating comma remains a plan comma. This can result in the address header being misinterpreted by some mail servers.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "libpython",
        "purl": "pkg:bitnami/libpython"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.9.23"
            },
            {
              "introduced": "3.10.0"
            },
            {
              "fixed": "3.10.17"
            },
            {
              "introduced": "3.11.0"
            },
            {
              "fixed": "3.11.9"
            },
            {
              "introduced": "3.12.0"
            },
            {
              "fixed": "3.12.3"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "type": "CVSS_V4"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-1795"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"
    ],
    "severity": "Low"
  },
  "details": "During an address list folding when a separating comma ends up on a folded line and that line is to be unicode-encoded then the separator itself is also unicode-encoded. Expected behavior is that the separating comma remains a plan comma. This can result in the address header being misinterpreted by some mail servers.",
  "id": "BIT-libpython-2025-1795",
  "modified": "2025-12-04T12:07:39.656Z",
  "published": "2025-08-11T13:53:05.339Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/09fab93c3d857496c0bd162797fab816c311ee48"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/70754d21c288535e86070ca7a6e90dcb670b8593"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/9148b77e0af91cdacaa7fe3dfac09635c3fe9a74"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/issues/100884"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/100885"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/119099"
    },
    {
      "type": "WEB",
      "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/MB62IZMEC3UM6SGHP5LET5JX2Y7H4ZUR/"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-1795"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/a4ef689ce670684ec132204b1cd03720c8e0a03d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/d4df3c55e4c5513947f907f24766b34d2ae8c090"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00013.html"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Mishandling of comma during folding and unicode-encoding of email headers"
}


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