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mod_userdir in lighttpd before 1.4.20, when a case-insensitive operating system or filesystem is used, performs case-sensitive comparisons on filename components in configuration options, which might allow remote attackers to bypass intended access restrictions, as demonstrated by a request for a .PHP file when there is a configuration rule for .php files.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade lighttpd | Jul 30, 2024 | Oct 3, 2008 |
| Freebsd | — | Upgrade lighttpd | Dec 10, 2025 | Sep 27, 2008 |
| Gentoo Linux | — | Upgrade www-servers/lighttpd. | Oct 30, 2017 | Oct 3, 2008 |
| Http Lighttpd | — | Upgrade to the latest version of lighttpd | Dec 8, 2014 | Oct 3, 2008 |
| Suse | — | Upgrade lighttpd-mod_cmlUpgrade lighttpd-mod_mysql_vhostUpgrade suse-releaseUpgrade lighttpd-mod_webdavUpgrade lighttpd-mod_rrdtoolUpgrade lighttpd-mod_trigger_b4_dlUpgrade lighttpdUpgrade lighttpd-mod_magnet | Feb 17, 2015 | Oct 3, 2008 |
| Ubuntu | — | Upgrade lighttpd | Nov 19, 2024 | Oct 3, 2008 |
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