{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "8.29.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5be574081c79cacd5c05c91d0fa5fd5c7b4a9ea4"
            }
          ],
          "repo": "https://github.com/gotenberg/gotenberg",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-jjwv-57xh-xr6r"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-22",
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27018.json"
  },
  "details": "Gotenberg is an API for converting document formats. Prior to version 8.29.0, the fix introduced for CVE-2024-21527 can be bypassed using mixed-case or uppercase URL schemes. This issue has been patched in version 8.29.0.",
  "id": "CVE-2026-27018",
  "modified": "2026-04-01T23:07:51.750591140Z",
  "published": "2026-03-30T20:14:32.860Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27018.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/gotenberg/gotenberg/commit/06b2b2e10c52b58135edbfe82e94d599eb0c5a11"
    },
    {
      "type": "FIX",
      "url": "https://github.com/gotenberg/gotenberg/commit/8625a4e899eb75e6fcf46d28394334c7fd79fff5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gotenberg/gotenberg/releases/tag/v8.29.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/gotenberg/gotenberg/security/advisories/GHSA-jjwv-57xh-xr6r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27018"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Gotenberg: Chromium deny-list bypass via case-insensitive URL scheme"
}