{"id":"CVE-2026-45062","sourceIdentifier":"security-advisories@github.com","published":"2026-06-10T18:16:57.077","lastModified":"2026-06-17T10:51:39.783","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"FrankenPHP is a modern application server for PHP. From version 1.11.2 to before version 1.12.3, the splitPos() function in cgi.go misuses golang.org/x/text/search with search.IgnoreCase when the request path contains a non-ASCII byte. Two distinct flaws in that fallback let an attacker mislead FrankenPHP into treating a non-.php file as a .php script. In any deployment where the attacker can place content into a file served by FrankenPHP (uploads, file storage, etc.), this can be escalated to remote code execution by crafting a URL whose path triggers either flaw. This issue has been patched in version 1.12.3."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"php","product":"frankenphp","versions":[{"version":">= 1.11.2, < 1.12.3","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-11T14:00:18.823214Z","id":"CVE-2026-45062","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-20"},{"lang":"en","value":"CWE-176"},{"lang":"en","value":"CWE-178"}]}],"references":[{"url":"https://github.com/php/frankenphp/releases/tag/v1.12.3","source":"security-advisories@github.com"},{"url":"https://github.com/php/frankenphp/security/advisories/GHSA-3g8v-8r37-cgjm","source":"security-advisories@github.com"},{"url":"https://github.com/php/frankenphp/security/advisories/GHSA-3g8v-8r37-cgjm","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}