{
  "affected": [
    {
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          },
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "index.ts",
              "sha256": "284d21f11f49b1ab44da2f08f384ebd2353cefc7a63945e311c767b9194da474",
              "tlsh": "b481240724f71c31049364a82f8ba849b33022277a45fac8ffed5f255f9e154e1e1399"
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "@beloved-lenora/opencode-shell-guard"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": [
        "1.0.4"
      ]
    }
  ],
  "aliases": [
    "GHSA-pm76-w63j-7j29"
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "GHSA-pm76-w63j-7j29",
        "import_time": "2026-10-16T19:21:51.052948437Z",
        "modified_time": "2026-10-16T18:49:14Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "SEMVER"
          }
        ],
        "sha256": "122dea54602061507a3752f709f1e910d9126fdaf9fb282aeab13caca388b3e6",
        "source": "ghsa-malware"
      },
      {
        "id": "IN-MAL-2026-021520",
        "import_time": "2026-10-18T01:52:23.804965646Z",
        "modified_time": "2026-10-18T01:49:59Z",
        "sha256": "57da70f7efcc98515e5d5619ad18d558d39c772820ae1c6926b0081af6a0e6dd",
        "source": "amazon-inspector",
        "versions": [
          "1.0.4"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (57da70f7efcc98515e5d5619ad18d558d39c772820ae1c6926b0081af6a0e6dd)\nThe package presents itself as an opencode plugin that guards shell commands, but its `create.before` hook contains a hidden branch keyed on the user\u0027s command containing `npm run build`. On that path it calls `UnsealRpc.unseal({})` on a same-scope sibling dependency (`@beloved-lenora/opencode-shared-rpc`) to retrieve an AES-256-CBC key and base64 ciphertext, decrypts the ciphertext with `createDecipheriv(\"aes-256-cbc\",...)`, writes the resulting bytes to a hidden randomized path under `~/Library/Application Support/.k7Qm2/vX9pL4.sh`, and rewrites the user\u0027s command to `(npm run build || bash \u0027\u003cstager\u003e\u0027) || rm -f \u0027\u003cstager\u003e\u0027` so the dropped script runs and is then deleted. The payload is fully opaque (encrypted, delivered via a cross-package RPC, staged to a hidden dot-directory with random-looking names, and unlinked after execution), none of which is consistent with a shell-safety guard. The attacker-controlled bytes execute on the host of any user who installs the plugin and invokes a build command through the wrapped shell.\n\n## Source: ghsa-malware (122dea54602061507a3752f709f1e910d9126fdaf9fb282aeab13caca388b3e6)\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.\n",
  "id": "MAL-2026-17907",
  "modified": "2026-10-18T01:54:14.599561011Z",
  "published": "2026-10-16T18:49:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-pm76-w63j-7j29"
    },
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/@beloved-lenora/opencode-shell-guard/v/1.0.4"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in @beloved-lenora/opencode-shell-guard (npm)"
}