{"action":"Upgrade craftcms/cms to 4.17.4 or later.","affected":[{"fixed":"5.9.9","introduced":"5.0.0-RC1"},{"fixed":"4.17.4","introduced":"4.0.0-beta.1"}],"component":"craftcms/cms","cve_ids":["CVE-2026-31857"],"ecosystem":"Packagist","epss":0.01119,"exploited":false,"fixed_versions":["5.9.9","4.17.4"],"ghsa_id":"GHSA-fp5j-j7j4-mcxc","id":"tcs_01M5KF1XS4BGPSEZBZCRNWNNV0","modified_at":"2026-03-13T10:56:24.868109Z","published_at":"2026-03-11T14:56:45Z","references":["https://osv.dev/vulnerability/GHSA-fp5j-j7j4-mcxc","https://github.com/craftcms/cms/security/advisories/GHSA-fp5j-j7j4-mcxc","https://nvd.nist.gov/vuln/detail/CVE-2026-31857","https://github.com/craftcms/cms/commit/8d4903647dcfd31b8d40ed027e27082013347a80","https://github.com/craftcms/cms"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"GHSA-fp5j-j7j4-mcxc","url":"https://osv.dev/vulnerability/GHSA-fp5j-j7j4-mcxc"},{"source":"nvd","source_id":"CVE-2026-31857","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31857"}],"summary":"CraftCMS has an RCE vulnerability via relational conditionals in the control panel"}