{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "9.2.0450"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "92993329178cb1f72d700fff45ca86e1c2d369f8"
            }
          ],
          "repo": "https://github.com/vim/vim",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-q4jv-r9gj-6cwv"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-122",
      "CWE-190"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45130.json"
  },
  "details": "Vim is an open source, command line text editor. Prior to version 9.2.0450, a heap buffer overflow exists in read_compound() in src/spellfile.c when loading a crafted spell file (.spl) with UTF-8 encoding active. An attacker-controlled length field in the spell file's compound section overflows a 32-bit signed integer multiplication, causing a small buffer to be allocated for a write loop that runs many iterations, overflowing the heap. Because the 'spelllang' option can be set from a modeline, a text file modeline can trigger spell file loading if a malicious .spl file has been planted on the runtimepath. This issue has been patched in version 9.2.0450.",
  "id": "CVE-2026-45130",
  "modified": "2026-08-05T03:30:10.696093760Z",
  "published": "2026-05-08T22:42:35.097Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/14/3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vim/vim/releases/tag/v9.2.0450"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45130.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/vim/vim/security/advisories/GHSA-q4jv-r9gj-6cwv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45130"
    },
    {
      "type": "FIX",
      "url": "https://github.com/vim/vim/commit/92993329178cb1f72d700fff45ca86e1c2d369f8"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Vim: Heap Buffer Overflow in spell file loading"
}