{"id":"CVE-2026-45074","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-45074","generatedAt":"2026-10-28T03:32:32.662Z","title":"From 7.1.0 until 7.4.12 and 8.0.12, Cas2Handler builds the CAS service parameter from Request::getSchemeAndHttpHost(), which reflects an attacker-controlled Host header when framework.trusted_hosts is not configured; an attacker controlling another…","description":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 7.1.0 until 7.4.12 and 8.0.12, Cas2Handler builds the CAS service parameter from Request::getSchemeAndHttpHost(), which reflects an attacker-controlled Host header when framework.trusted_hosts is not configured; an attacker controlling another application registered with the same CAS server can replay a victim ticket against the Symfony application and authenticate as the victim. This issue is fixed in versions 7.4.12 and 8.0.12.","published":"2026-07-14T18:17:17.000Z","lastModified":"2026-07-15T15:35:14.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":7.6,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-290"],"affected":["sensiolabs/symfony"],"epss":{"score":0.00488,"percentile":0.41847,"date":"2026-10-27","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 (0.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/symfony/symfony/commit/5ba145dba702404801bdf9e7e8d6df170060d541","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/symfony/symfony/releases/tag/v7.4.12","tags":["Product","Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/symfony/symfony/releases/tag/v8.0.12","tags":["Product","Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/symfony/symfony/security/advisories/GHSA-j8gj-9rm5-4xhx","tags":["Patch","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45074","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."}