{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "7.7.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "c6a4c15bf7460dd47db5a7dba953d1004e4db6d5"
            }
          ],
          "repo": "https://github.com/lycheeorg/lychee",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-5wh2-hg7q-6hv3"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-184",
      "CWE-20"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77466.json"
  },
  "details": "Lychee is a free, open-source photo-management tool. Prior to 7.7.0, Lychee hides the Omnipay Dummy test provider from the checkout options in production through OmnipayFactory::get_supported_providers(), but CreateSessionRequest validates only that the submitted provider is an OmnipayProviderType and does not enforce OmnipayProviderType::isAllowed(). A buyer, including a guest when webshop_allow_guest_checkout is enabled, can submit Dummy directly and complete the test gateway flow without a real payment. When webshop_auto_fulfill_enabled is enabled, OrderCompletedListener::fullfillOrder() can then release the purchasable item. The issue requires access to the Supporter or Pro webshop and an enabled purchasable item. Testing bypassed the closed-source license middleware, so whether the real license layer performs additional payment-provider validation remains unverified. The payment finalize status check itself is not the root cause. This issue is fixed in version 7.7.0.",
  "id": "CVE-2026-77466",
  "modified": "2026-10-16T02:31:05.546301244Z",
  "published": "2026-10-15T16:36:58.410Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77466.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/LycheeOrg/Lychee/commit/8b73656f920c682862b9199acc87fbaf72ee5a90"
    },
    {
      "type": "FIX",
      "url": "https://github.com/LycheeOrg/Lychee/pull/4507"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LycheeOrg/Lychee/releases/tag/v7.7.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5wh2-hg7q-6hv3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77466"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Lychee: Webshop payment bypass via unrestricted \"Dummy\" gateway selection"
}