{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "3000.2.0"
              },
              {
                "fixed": "3000.17.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "d54f2307c7ee690e9a1d7ef853ca53a617c8867f"
            },
            {
              "fixed": "d0075a7a8d44028793ea3384b34062b940841f24"
            }
          ],
          "repo": "https://github.com/olivetin/olivetin",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-xc5w-4v5w-7x65"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-78"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67438.json"
  },
  "details": "OliveTin gives access to predefined shell commands from a web interface. From 3000.2.0 until 3000.17.0, the service/internal/executor/arguments.go checkShellArgumentSafety function does not treat regex: custom argument types as unsafe for Shell mode actions, allowing values that pass typeSafetyCheckRegex to be interpolated by wrapCommandInShell into an sh -c command string and enabling OS command injection. This issue is fixed in version 3000.17.0.",
  "id": "CVE-2026-67438",
  "modified": "2026-07-30T03:52:26.516625759Z",
  "published": "2026-07-29T20:53:09.524Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67438.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OliveTin/OliveTin/commit/995ff79736f2bccc364448a3ece84087b550b232"
    },
    {
      "type": "WEB",
      "url": "https://github.com/OliveTin/OliveTin/releases/tag/3000.17.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/OliveTin/OliveTin/security/advisories/GHSA-xc5w-4v5w-7x65"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67438"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OliveTin OS Command Injection via Custom regex: Argument Type Bypassing Shell Safety Check"
}