{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "7.6.3"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "dcef326ab03c8bc43e5dfa1550afde88ad414c50"
            }
          ],
          "repo": "https://github.com/lycheeorg/lychee",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-735c-2wqc-x29r"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-285",
      "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61838.json"
  },
  "details": "Lychee is a free, open-source photo-management tool. Prior to 7.6.3, GET /api/v2/Zip authorizes album and photo archives through AlbumPolicy::canDownload() and PhotoPolicy::canDownload() without first enforcing AlbumPolicy::canAccess(). For a public, password-protected album with grants_download enabled, an unauthenticated attacker who knows the shared album identifier can download a ZIP archive without supplying the password or unlocking the album, even though browsing endpoints deny access. The archive exposes the album's photos and can include full-resolution originals and associated metadata when grants_full_photo_access is enabled. This issue is fixed in version 7.6.3.",
  "id": "CVE-2026-61838",
  "modified": "2026-10-16T10:30:28.103601739Z",
  "published": "2026-10-15T16:32:37.392Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61838.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/LycheeOrg/Lychee/commit/4366dd0e721126dffe29659afec93aee9c1db711"
    },
    {
      "type": "FIX",
      "url": "https://github.com/LycheeOrg/Lychee/pull/4459"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LycheeOrg/Lychee/releases/tag/v7.6.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-735c-2wqc-x29r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61838"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Lychee: Album password bypass in ZIP downloads"
}