{"action":"Upgrade concrete5/concrete5 to 9.5.1 or later.","affected":[{"fixed":"9.5.1","introduced":"0"}],"component":"concrete5/concrete5","cve_ids":["CVE-2026-8134"],"ecosystem":"Packagist","epss":0.01113,"exploited":false,"fixed_versions":["9.5.1"],"ghsa_id":"GHSA-645j-cm4x-3xvw","id":"tcs_01M5KEWKKR9B6HPCP8S4D09DDZ","modified_at":"2026-09-10T03:50:45.702359321Z","published_at":"2026-05-21T21:30:37Z","references":["https://osv.dev/vulnerability/GHSA-645j-cm4x-3xvw","https://nvd.nist.gov/vuln/detail/CVE-2026-8134","https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes","https://github.com/concretecms/concretecms"],"severity":{"label":"high","score":7.2},"sources":[{"source":"osv","source_id":"GHSA-645j-cm4x-3xvw","url":"https://osv.dev/vulnerability/GHSA-645j-cm4x-3xvw"}],"summary":"Concrete CMS Vulnerable to Relative Path Traversal"}