{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.70.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@grackle-ai/powerline"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.70.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-25T17:30:46Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nWhen `--token` is not provided and `GRACKLE_POWERLINE_TOKEN` is not set, the PowerLine gRPC server runs with **zero authentication**. A warning is logged (`\"NO AUTH (development only)\"`) but nothing prevents deployment in this state. Any client that can reach the PowerLine port can spawn agent sessions, access credential tokens, and execute code.\n\nThe default binding is `127.0.0.1` (loopback only), which limits exposure to the local machine. However, if PowerLine is accidentally exposed on a network (e.g., in a container or via port forwarding), the impact is critical.\n\n**Affected code:**\n- `packages/powerline/src/index.ts:46` \u2014 token defaults to empty string\n- `packages/powerline/src/index.ts:63-76` \u2014 auth interceptor is only added when token is truthy\n\n### Patches\n\n0.70.1\n\n**Fix:** Require an explicit `--no-auth` flag to run without authentication, rather than defaulting to no auth when the token is empty. Throw an error if starting without a token and without `--no-auth`.\n\n### Workarounds\n\nAlways provide `--token` or set `GRACKLE_POWERLINE_TOKEN` when starting PowerLine. The Grackle server does this automatically when managing PowerLine lifecycle.\n\n### Resources\n\n- CWE-306: Missing Authentication for Critical Function\n- File: `packages/powerline/src/index.ts`",
  "id": "GHSA-xq7h-vwjp-5vrh",
  "modified": "2026-03-25T17:30:46Z",
  "published": "2026-03-25T17:30:46Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/nick-pape/grackle/security/advisories/GHSA-xq7h-vwjp-5vrh"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/nick-pape/grackle"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "@grackle-ai/powerline Runs Without Authentication by Default"
}