{"action":"Upgrade craftcms/cms to 5.10.0 or later.","affected":[{"fixed":"5.10.0","introduced":"5.9.0"}],"component":"craftcms/cms","cve_ids":["CVE-2026-55794"],"ecosystem":"Packagist","epss":0.00412,"exploited":false,"fixed_versions":["5.10.0"],"ghsa_id":"GHSA-f74w-488g-8x5r","id":"tcs_01M5KF1HVFD8HHAEZ17HZMHVPG","modified_at":"2026-09-10T03:50:51.865713662Z","published_at":"2026-07-06T21:37:06Z","references":["https://osv.dev/vulnerability/GHSA-f74w-488g-8x5r","https://github.com/craftcms/cms/security/advisories/GHSA-f74w-488g-8x5r","https://nvd.nist.gov/vuln/detail/CVE-2026-55794","https://github.com/craftcms/cms/pull/18680","https://github.com/craftcms/cms"],"severity":{"label":"high","score":8.7},"sources":[{"source":"osv","source_id":"GHSA-f74w-488g-8x5r","url":"https://osv.dev/vulnerability/GHSA-f74w-488g-8x5r"},{"source":"nvd","source_id":"CVE-2026-55794","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55794"}],"summary":"Craft CMS: Potential authenticated Remote Code Execution via referrer redirect"}