{"id":"BIT-php-min-2026-17545","summary":"PHP on Windows: Reserved Device Names Are Not Rejected Before File/Stream I/O which can cause DoS","details":"On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW() and opens a device instead of the regular file the application expected, which can block or hang the request and exhaust worker processes.","aliases":["BIT-libphp-2026-17545","BIT-php-2026-17545","CVE-2026-17545"],"modified":"2026-10-01T10:11:17.352470307Z","published":"2026-10-01T09:34:01.728Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"]},"references":[{"type":"WEB","url":"https://github.com/php/php-src/security/advisories/GHSA-9f67-6fw4-hpfp"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17545"}],"affected":[{"package":{"name":"php-min","ecosystem":"Bitnami","purl":"pkg:bitnami/php-min"},"ranges":[{"type":"SEMVER","events":[{"introduced":"8.2.0"},{"fixed":"8.2.34"},{"introduced":"8.3.0"},{"fixed":"8.3.35"},{"introduced":"8.4.0"},{"fixed":"8.4.26"},{"introduced":"8.5.0"},{"fixed":"8.5.11"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/php-min/BIT-php-min-2026-17545.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}