{"id":"CVE-2026-57579","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-57579","generatedAt":"2026-10-28T00:57:14.803Z","title":"Alchemy is an open source content management system engine written in Ruby on Rails.","description":"Alchemy is an open source content management system engine written in Ruby on Rails. Prior to 7.4.15, 8.0.15, 8.1.14, and 8.2.6, the unauthenticated GET /api/pages/nested endpoint implemented by Api::PagesController#nested in app/controllers/alchemy/api/pages_controller.rb returns an unfiltered page tree because it performs no authorization and does not scope descendants by the caller's ability. Anonymous callers can retrieve restricted and unpublished page metadata that the sibling show action denies. When elements=true is supplied, PageTreeSerializer also returns element and ingredient content from restricted pages because PageTreePreloader and the serializer do not apply an ability check to those records. This issue is fixed in versions 7.4.15, 8.0.15, 8.1.14, and 8.2.6.","published":"2026-09-14T17:17:49.000Z","lastModified":"2026-09-30T19:57:08.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-862"],"affected":[],"epss":{"score":0.00648,"percentile":0.50758,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/AlchemyCMS/alchemy_cms/commit/30888fb41d8b71fdfb3b116a7efccd851d73e1f3","source":"security-advisories@github.com"},{"url":"https://github.com/AlchemyCMS/alchemy_cms/commit/5620e76f0d274d6f69f34281b7e46d01879f6b99","source":"security-advisories@github.com"},{"url":"https://github.com/AlchemyCMS/alchemy_cms/commit/8417a2e9dcb00653c8b238f8a040b09532dd4c0f","source":"security-advisories@github.com"},{"url":"https://github.com/AlchemyCMS/alchemy_cms/commit/85702d9fe4e247649b1358900c5af853e83b4a3a","source":"security-advisories@github.com"},{"url":"https://github.com/AlchemyCMS/alchemy_cms/commit/a082dd0afe188d199f386a5e1db01987d0de807f","source":"security-advisories@github.com"},{"url":"https://github.com/AlchemyCMS/alchemy_cms/pull/3982","source":"security-advisories@github.com"},{"url":"https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v7.4.15","source":"security-advisories@github.com"},{"url":"https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.0.15","source":"security-advisories@github.com"},{"url":"https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.1.14","source":"security-advisories@github.com"},{"url":"https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.2.6","source":"security-advisories@github.com"},{"url":"https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-mqq5-j7w8-2hgh","source":"security-advisories@github.com"},{"url":"https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-mqq5-j7w8-2hgh","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-57579","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}