{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "8.9.8"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4cd74cb9347b9c6caaab17d999e24fc9ed228ff7"
            },
            {
              "fixed": "40f896e6f6c49a29b6ca3f559696dd786f40152d"
            }
          ],
          "repo": "https://github.com/notepad-plus-plus/notepad-plus-plus",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-759j-g8j4-867p"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-345",
      "CWE-693",
      "CWE-78"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85288.json"
  },
  "details": "Notepad++ is a free and open-source source code editor. Prior to 8.9.8, Notepad++ incompletely enforces shortcuts.xml HMAC validation because WM_MACRODLGRUNMACRO, the Run a Macro Multiple Times entry point, calls macroPlayback() without the validation used by command(). A tampered shortcuts.xml macro that is blocked through the Macro menu or a shortcut key can therefore execute through the multi-run dialog and invoke internal Notepad++ commands, including commands that launch external programs, in the current user context. This issue is fixed in version 8.9.8.",
  "id": "CVE-2026-85288",
  "modified": "2026-09-27T03:30:38.391227568Z",
  "published": "2026-09-22T17:11:47.937Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/notepad-plus-plus/notepad-plus-plus/releases/tag/v8.9.8"
    },
    {
      "type": "WEB",
      "url": "https://notepad-plus-plus.org/news/v898-released"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85288.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-759j-g8j4-867p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85288"
    },
    {
      "type": "FIX",
      "url": "https://github.com/notepad-plus-plus/notepad-plus-plus/commit/4cd74cb9347b9c6caaab17d999e24fc9ed228ff7"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Notepad++: Shortcuts.xml macro HMAC bypass still reachable via the \"Run a Macro Multiple Times\" dialog"
}