{
  "id": "CVE-2026-58102",
  "url": "https://spydr.io/cve/CVE-2026-58102",
  "published": "2026-07-13T23:16:47.127Z",
  "modified": "2026-08-11T01:19:44.983Z",
  "score": 9.1,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
  "score_source": "CISA ADP",
  "epss": 0.00341,
  "epss_percentile": 0.25329,
  "exploited": false,
  "kev": null,
  "ssvc_exploitation": "none",
  "vendors": [
    "JONASBN"
  ],
  "products": [
    "JONASBN Crypt::OpenSSL::X509"
  ],
  "cwes": [
    "CWE-125"
  ],
  "description": "Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow a heap out-of-bounds read via a long certificate extension OID in hv_exts. When building the extension hash (via extensions(), extensions_by_long_name(), extensions_by_oid(), or has_extension_oid()), the code passes OBJ_obj2txt()'s return value as the hash-key length; because that value is the OID's full text length rather than the bytes written to the fixed-size buffer (129 bytes), an OID whose text is longer than the 129-byte buffer causes a read past the allocation, exposing adjacent heap memory as the returned hash key. extensions_by_name() uses the static shortname path and is not affected.",
  "status": "Analyzed",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.1,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://github.com/dsully/perl-crypt-openssl-x509/commit/757289bfce095455c104d4adfe9312e7b339620f.patch",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://metacpan.org/release/JONASBN/Crypt-OpenSSL-X509-2.1.3/source/Changes.md",
      "tags": [
        "Release Notes"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58102",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}