{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "9.2.0735"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6b611b0d15603c52ebdad17172b0232b4f65704e"
            }
          ],
          "repo": "https://github.com/vim/vim",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-mf92-v4xw-j45x"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-94"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59858.json"
  },
  "details": "Vim is an open source, command line text editor. Prior to 9.2.0735, the C omni-completion script in runtime/autoload/ccomplete.vim interpolates the typeref: or typename: extension field of a tags entry, without escaping, into a :vimgrep pattern that is run through :execute. Because :vimgrep honors the bar as a command separator, a crafted tag field can close the search pattern and append an arbitrary Ex command; opening a hostile .c file whose project tags file contains such an entry and invoking C omni-completion runs that command as the editing user. This issue is fixed in version 9.2.0735.",
  "id": "CVE-2026-59858",
  "modified": "2026-07-30T11:32:13.754727806Z",
  "published": "2026-07-09T22:37:52.789Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59858.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/vim/vim/security/advisories/GHSA-mf92-v4xw-j45x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59858"
    },
    {
      "type": "FIX",
      "url": "https://github.com/vim/vim/commit/6b611b0d15603c52ebdad17172b0232b4f65704e"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Vim: Arbitrary Code Execution via C Omni-Completion"
}