{
  "cveId": "CVE-2026-107373",
  "url": "https://patchblox.com/security/cve/CVE-2026-107373",
  "summary": "CVE-2026-107373 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-107373, released October 13, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "libextutils-typemaps-default-perl: ExtUtils::Typemaps::STL::String versions before 1.06 for Perl T_STD_STRING typemap may read the SV length before stri...",
  "description": "ExtUtils::Typemaps::STL::String versions before 1.06 for Perl T_STD_STRING typemap may read the SV length before stringifying the argument.  The typemap uses      $var = std::string( SvPV_nolen($arg), SvCUR($arg) )  However, evaluation order for C\u002B\u002B arguments is not specified, and some compilers may produce code that evalutes SvCUR($arg) first.  When $arg is not a string (for example, an interger, number or a reference) then SvCUR will return an invalid value, and the program may abort or segfault.",
  "published": "2026-10-10T13:17:31Z",
  "severity": "critical",
  "cvss": 9.1,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
  "epss": 0.00387,
  "epssPercentile": 0.33038,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libextutils-typemaps-default-perl",
      "release": "Debian 14",
      "fixedVersion": "1.07-1",
      "fix": "DEBIAN-CVE-2026-107373",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-107373",
      "released": "2026-10-13T23:28:43Z"
    },
    {
      "platform": "linux",
      "product": "perl-ExtUtils-Typemaps-Default",
      "release": "Fedora 43",
      "fixedVersion": "1.07-1.fc43",
      "fix": "FEDORA-2026-6186A0239F",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-6186a0239f",
      "released": "2026-11-07T01:05:44Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}