CVE-2026-104977

{
  "etk_id": "ETK-2026-3681",
  "cve_id": "CVE-2026-104977",
  "display_id": "CVE-2026-104977",
  "ghsa_id": "GHSA-hhj8-7hv6-m74r",
  "euvd_id": "EUVD-2026-92535",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authenticated SSRF in Plane work-item link unfurling",
  "summary": "Plane versions before 1.4.0 allow an authenticated project member to abuse work-item link unfurling to make the server request attacker-selected internal resources. Returned content can be exposed through link title or favicon metadata. Exploitation requires member access to a project and, for the DNS-rebinding path, control of DNS for a submitted hostname.",
  "mitigation": "Upgrade makeplane/plane to version 1.4.0 or later. Until upgraded, restrict untrusted users' ability to add work-item links and limit the application's outbound network access to internal and metadata services.",
  "vendor": "other",
  "product": "other:makeplane/plane",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.3.1"
      ],
      "ecosystem": "other",
      "fixed_versions": [
        "1.4.0"
      ],
      "package_name": "makeplane/plane",
      "purl": null
    }
  ],
  "cwes": [
    918
  ],
  "cvss_score": 7.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 72.6074026,
  "t0_at": "2026-10-05T17:47:29.989000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-05T17:47:29.989000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T17:47:29.989000+00:00",
      "url": "https://github.com/makeplane/plane/security/advisories/GHSA-hhj8-7hv6-m74r"
    }
  }
}