{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.9.0"
              },
              {
                "introduced": "5.0.0"
              },
              {
                "fixed": "5.4.0"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d952dfc0a890979c863ec5fa11660e37400f0f4c"
            },
            {
              "introduced": "2ff182ba39ddea19fa1615bd3733f734b5e53842"
            },
            {
              "fixed": "80061614af90387da8b8ff9d92b390050a5f958f"
            }
          ],
          "repo": "https://github.com/getkirby/kirby",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-85x2-r8xv-ww8c"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-862",
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42137.json"
  },
  "details": "Kirby is an open-source content management system. Prior to versions 4.9.0 and 5.4.0, `pages.access/list` and `files.access/list` permissions are not consistently checked in the Panel and REST API. This issue has been patched in versions 4.9.0 and 5.4.0.",
  "id": "CVE-2026-42137",
  "modified": "2026-07-15T01:49:11.235610598Z",
  "published": "2026-05-09T03:38:35.474Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/getkirby/kirby/releases/tag/4.9.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getkirby/kirby/releases/tag/5.4.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42137.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/getkirby/kirby/security/advisories/GHSA-85x2-r8xv-ww8c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42137"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Kirby: `pages.access/list` and `files.access/list` permissions are not consistently checked in the REST API and changes dialog"
}