{"answers":{"affected":"8 open source packages ship an affected version, including alchemy_cms.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57579 exists.","fix":"Upgrade alchemy_cms to a fixed version for your release line: 7.4.15, 8.0.15, 8.1.14 or 8.2.6.","what":"CVE-2026-57579 is a high-severity missing authorization vulnerability in AlchemyCMS alchemy_cms, published on 14 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-57579 and fix it if it is affected.\n\nWhat it is: CVE-2026-57579 is a high-severity missing authorization vulnerability in AlchemyCMS alchemy_cms, published on 14 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57579 exists.\n\nAffected packages and fixed versions:\n- alchemy_cms (RubyGems): affected all versions; fixed in 7.4.15\n- alchemy_cms (RubyGems): affected all versions; fixed in 7.4.15\n- alchemy_cms (RubyGems): affected from 8.0.0.a; fixed in 8.0.15\n- alchemy_cms (RubyGems): affected from 8.0.0.a; fixed in 8.0.15\n- alchemy_cms (RubyGems): affected from 8.1.0; fixed in 8.1.14\n- alchemy_cms (RubyGems): affected from 8.1.0; fixed in 8.1.14\n- alchemy_cms (RubyGems): affected from 8.2.0; fixed in 8.2.6\n- alchemy_cms (RubyGems): affected from 8.2.0; fixed in 8.2.6\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-57579/ (Markdown: https://insights.sbomify.com/CVE-2026-57579/index.md)","id":"CVE-2026-57579","markdown":"https://insights.sbomify.com/CVE-2026-57579/index.md","name":"CVE-2026-57579","record":{"aliases":["GHSA-mqq5-j7w8-2hgh"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Ruby CMS engine","requires_auth":"none","summary":"Unauthenticated attackers can access restricted and unpublished page content via the nested page API due to missing authorization checks.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"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.","ecosystems":["RubyGems"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Alchemy: Unauthenticated nested page API leaks restricted \u0026 unpublished content","id":"CVE-2026-57579","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":8,"n_references":11,"next":{"headline":"authentik: Account Takeover via SAML NameID Comment Truncation","id":"CVE-2026-57580"},"packages":[{"ecosystem":"RubyGems","fixed":["7.4.15"],"introduced":["0"],"last_affected":[],"package":"alchemy_cms","purl":null,"source":"GHSA-mqq5-j7w8-2hgh"},{"ecosystem":"RubyGems","fixed":["7.4.15"],"introduced":["0"],"last_affected":[],"package":"alchemy_cms","purl":"pkg:gem/alchemy_cms","source":"GHSA-mqq5-j7w8-2hgh"},{"ecosystem":"RubyGems","fixed":["8.0.15"],"introduced":["8.0.0.a"],"last_affected":[],"package":"alchemy_cms","purl":null,"source":"GHSA-mqq5-j7w8-2hgh"},{"ecosystem":"RubyGems","fixed":["8.0.15"],"introduced":["8.0.0.a"],"last_affected":[],"package":"alchemy_cms","purl":"pkg:gem/alchemy_cms","source":"GHSA-mqq5-j7w8-2hgh"},{"ecosystem":"RubyGems","fixed":["8.1.14"],"introduced":["8.1.0"],"last_affected":[],"package":"alchemy_cms","purl":null,"source":"GHSA-mqq5-j7w8-2hgh"},{"ecosystem":"RubyGems","fixed":["8.1.14"],"introduced":["8.1.0"],"last_affected":[],"package":"alchemy_cms","purl":"pkg:gem/alchemy_cms","source":"GHSA-mqq5-j7w8-2hgh"},{"ecosystem":"RubyGems","fixed":["8.2.6"],"introduced":["8.2.0"],"last_affected":[],"package":"alchemy_cms","purl":null,"source":"GHSA-mqq5-j7w8-2hgh"},{"ecosystem":"RubyGems","fixed":["8.2.6"],"introduced":["8.2.0"],"last_affected":[],"package":"alchemy_cms","purl":"pkg:gem/alchemy_cms","source":"GHSA-mqq5-j7w8-2hgh"}],"prev":{"headline":"DotVVM: Missing authorization in AuthorizeActionFilter","id":"CVE-2026-57578"},"products":["alchemy_cms"],"published":"2026-09-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-14","vendors":["AlchemyCMS"]},"summary":"Unauthenticated attackers can access restricted and unpublished page content via the nested page API due to missing authorization checks.","url":"https://insights.sbomify.com/CVE-2026-57579/"}