CVE-2026-61838

{
  "etk_id": "ETK-2026-1702",
  "cve_id": "CVE-2026-61838",
  "display_id": "CVE-2026-61838",
  "ghsa_id": "GHSA-735c-2wqc-x29r",
  "euvd_id": "EUVD-2026-102191",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Authorization bypass in Lychee ZIP archive downloads",
  "summary": "Lychee versions before 7.6.3 can allow unauthenticated retrieval of ZIP archives from affected password-protected public albums. An attacker who knows a shared album identifier may obtain photos and, depending on album settings, original files and metadata when archive downloads are enabled.",
  "mitigation": "Upgrade Lychee to version 7.6.3 or later. Until upgraded, disable download access for password-protected public albums and restrict distribution of shared album identifiers.",
  "vendor": "LycheeOrg",
  "product": "Lychee",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 7.6.2"
      ],
      "ecosystem": "composer",
      "fixed_versions": [
        "> 7.6.2"
      ],
      "package_name": "lychee-org/lychee",
      "purl": "pkg:composer/lychee-org/lychee"
    }
  ],
  "cwes": [
    285
  ],
  "cvss_score": 8.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
  "epss_score": 0.0042,
  "epss_percentile": 0.3517,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 28.6496437,
  "t0_at": "2026-10-15T16:32:37.392000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-15T18:27:37.222793+00:00",
      "days": 0.07985915269675926,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T16:32:37.392000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-15T16:32:37.392000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T16:32:37.392000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-61838"
    }
  }
}